Pollen Morphological Characteristics of 30 Species of Gentianaceae in Shergyla Mountain Area,Tibet

doi:10.16420/j.issn.0513-353x.2021-0721

Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (12): 2427-2442.doi: 10.16420/j.issn.0513-353x.2021-0721

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Pollen Morphological Characteristics of 30 Species of Gentianaceae in Shergyla Mountain Area,Tibet

LI Hongchi¹^,², WU Tianyu³, LUO Jian¹^,^*()

¹Tibet Key Laboratory of Forest Ecology in Plateau Area,Ministry of Education;National Key Station of Field Scientific Observation Experiment,Research Institute of Tibet Plateau Ecology,Tibet Agriculture & Animal Husbandry University;Nyingchi,Tibet 860000,China
²Institute of Fisheries Science,Xizang Autonomous Region Academy of Agricultural and Animal Husbandry Sciences,Lhasa,850000,China
³Resources and Environment College,Tibet Agriculture & Animal Husbandry University,Nyingchi,Tibet 860000,China

Received:2021-04-13 Revised:2021-10-09 Published:2022-01-04
Contact: LUO Jian E-mail:luojian@xza.edu.cn

Abstract

Abstract:

The morphological characteristics of pollen of 30 species of plants of seven genera in Gentianaceae in Shergyla mountainous area of Tibet were observed and studied by scanning electron microscope. The pollen of these 30 species of Gentianaceae were all single-grain pollen with three grooves. There are certain differences among various species. Pollen in the equatorial view is divided into super rectangular,nearly rectangular,elliptical,and fusiform;in polar view,there are three types of three-lobed round,triangular-shaped,and near-triangular,mainly three-lobed round;pollen volume index between species,the length difference between the polar axis and the equatorial axis is more obvious;there are five types of pollen outer wall decorations：stripe-reticulate,reticulated,hole-shaped,brain-shaped reticulate and reticulated carving. Finally,the significance of the observed 30 species of Gentianaceae pollen in the morphological characteristics of Gentianaceae plant evolution,genetic relationship and systematic classification were discussed.

Key words: Gentiaceae, pollen morphology, systematic significance, scanning electron microscope（SEM）, Shergyla Mountains

CLC Number:

S682.19

LI Hongchi, WU Tianyu, LUO Jian. Pollen Morphological Characteristics of 30 Species of Gentianaceae in Shergyla Mountain Area,Tibet[J]. Acta Horticulturae Sinica, 2021, 48(12): 2427-2442.

Figures/Tables 4

References 35

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编号 No	属名 Genus	种名 Species	海拔/m Elevation	纬度 Latitude	经度 Longitude
1	龙胆属Gentiana （Tourn.）L.	西藏秦艽G. tibetica King ex Hook. f.	3 279	29°45′57″N	94°44′04″E
2		假鳞叶龙胆G. pseudosquarrosa H. Smith	3 025	29°40′14″N	94°18′57″E
3		珠峰龙胆G. stellata Turrill	4 480	29°36′55″N	94°38′50″E
4		厚边龙胆G. simulatrix Marq.	4 687	29°37′07″N	94°38′56″E
5		鳞叶龙胆G. squarrosa Ledebour	4 294	29°36′49″N	94°41′17″E
6		蓝玉簪龙胆G. veitchiorum Hemsley	3 279	29°45′57″N	94°44′04″E
7		华丽龙胆G. ornata（Wallich ex G. Don）Grisebach	4 480	29°36′55″N	94°38′50″E
8		假水生龙胆G. pseudoaquatica Kusnezow	4 186	29°38′15″N	94°42′54″E
9		美龙胆 G. decorata Diels	4 480	29°36′55″N	94°38′50″E
10		直萼龙胆G. erectosepala T. N. Ho	4 455	29°37′07″N	94°39′37″E
11		柔软龙胆G. prainii Burk.	4 170	29°35′09″N	94°36′41″E
12		倒锥花龙胆G. obconica T. N. Ho	4 185	29°36′11″N	94°35′43″E
13		小龙胆G. parvula H. Smith	4 480	29°36′55″N	94°38′50″E
14		锡金龙胆G. sikkimensis C. B. Clarke	4 265	29°36′58″N	94°41′45″E
15	獐牙菜属 Swertia L.	藏獐牙菜S. racemosa（Griseb.）Wall. ex C. B. Clarke	3 817	29°39′20″N	94°43′09″E
16		抱茎獐牙菜S. franchetiana H. Smith	2 136	30°06′15″N	95°06′39″E
17		宽丝獐牙菜S. paniculata Wallich	3 025	29°40′14″N	94°18′57″E
18		毛萼獐牙菜S. hispidicalyx Burk.	3 025	29°40′14″N	94°18′57″E
19		美丽獐牙菜S. angustifolia var. pulchella（D.Don）Burk.	2 136	30°06′15″N	95°06′39″E
20		苇叶獐牙菜S. wardii C. Marquand	4 460	29°37′07″N	94°39′37″E
21		察隅獐牙菜S. zayuensis T. N. Ho et S. W. Liu	2 130	30°06′15″N	95°06′39″E
22		显脉獐牙菜S. nervosa（G. Don）Wall. ex C. B. Clarke	1 919	30°01′20″N	95°00′32″E
23	扁蕾属 Gentianopsis Ma	湿生扁蕾Gentianopsis paludosa（Hook. f.）Ma	3 437	29°41′49″N	94°43′36″E
24	扁蕾属 Gentianopsis Ma	回旋扁蕾Gentianopsis contorta（Royle）Ma	4 480	29°36′55″N	94°38′50″E
25	肋柱花属 Lomatogonium A. Braun	大花肋柱花L. macranthum（Diels et Gilg）Fern.	4 480	29°36′55″N	94°38′50″E
26	肋柱花属 Lomatogonium A. Braun	铺散肋柱花L. thomsonii（C. B. Clarke）Fern.	4 294	29°36′49″N	94°41′17″E
27	蔓龙胆属 Crawfurdia Wall.	大花蔓龙胆C. angustata C. B. Clarke	1 902	30°01′29″N	95°11′35″E
28	蔓龙胆属 Crawfurdia Wall.	穗序蔓龙胆C. speciosa Wall.	2 715	29°54′29″N	94°47′39″E
29	花锚属 Halenia Borkh.	椭圆叶花锚H. elliptica D. Don	3 279	29°45′57″N	94°44′04″E
30	假龙胆属 Gentianella Moench	黑边假龙胆Gentianella azurea（Bunge）Holub	4 294	29°36′49″N	94°41′17″E

编号 No	属名 Genus	种名 Species	海拔/m Elevation	纬度 Latitude	经度 Longitude
1	龙胆属Gentiana （Tourn.）L.	西藏秦艽G. tibetica King ex Hook. f.	3 279	29°45′57″N	94°44′04″E
2		假鳞叶龙胆G. pseudosquarrosa H. Smith	3 025	29°40′14″N	94°18′57″E
3		珠峰龙胆G. stellata Turrill	4 480	29°36′55″N	94°38′50″E
4		厚边龙胆G. simulatrix Marq.	4 687	29°37′07″N	94°38′56″E
5		鳞叶龙胆G. squarrosa Ledebour	4 294	29°36′49″N	94°41′17″E
6		蓝玉簪龙胆G. veitchiorum Hemsley	3 279	29°45′57″N	94°44′04″E
7		华丽龙胆G. ornata（Wallich ex G. Don）Grisebach	4 480	29°36′55″N	94°38′50″E
8		假水生龙胆G. pseudoaquatica Kusnezow	4 186	29°38′15″N	94°42′54″E
9		美龙胆 G. decorata Diels	4 480	29°36′55″N	94°38′50″E
10		直萼龙胆G. erectosepala T. N. Ho	4 455	29°37′07″N	94°39′37″E
11		柔软龙胆G. prainii Burk.	4 170	29°35′09″N	94°36′41″E
12		倒锥花龙胆G. obconica T. N. Ho	4 185	29°36′11″N	94°35′43″E
13		小龙胆G. parvula H. Smith	4 480	29°36′55″N	94°38′50″E
14		锡金龙胆G. sikkimensis C. B. Clarke	4 265	29°36′58″N	94°41′45″E
15	獐牙菜属 Swertia L.	藏獐牙菜S. racemosa（Griseb.）Wall. ex C. B. Clarke	3 817	29°39′20″N	94°43′09″E
16		抱茎獐牙菜S. franchetiana H. Smith	2 136	30°06′15″N	95°06′39″E
17		宽丝獐牙菜S. paniculata Wallich	3 025	29°40′14″N	94°18′57″E
18		毛萼獐牙菜S. hispidicalyx Burk.	3 025	29°40′14″N	94°18′57″E
19		美丽獐牙菜S. angustifolia var. pulchella（D.Don）Burk.	2 136	30°06′15″N	95°06′39″E
20		苇叶獐牙菜S. wardii C. Marquand	4 460	29°37′07″N	94°39′37″E
21		察隅獐牙菜S. zayuensis T. N. Ho et S. W. Liu	2 130	30°06′15″N	95°06′39″E
22		显脉獐牙菜S. nervosa（G. Don）Wall. ex C. B. Clarke	1 919	30°01′20″N	95°00′32″E
23	扁蕾属 Gentianopsis Ma	湿生扁蕾Gentianopsis paludosa（Hook. f.）Ma	3 437	29°41′49″N	94°43′36″E
24	扁蕾属 Gentianopsis Ma	回旋扁蕾Gentianopsis contorta（Royle）Ma	4 480	29°36′55″N	94°38′50″E
25	肋柱花属 Lomatogonium A. Braun	大花肋柱花L. macranthum（Diels et Gilg）Fern.	4 480	29°36′55″N	94°38′50″E
26	肋柱花属 Lomatogonium A. Braun	铺散肋柱花L. thomsonii（C. B. Clarke）Fern.	4 294	29°36′49″N	94°41′17″E
27	蔓龙胆属 Crawfurdia Wall.	大花蔓龙胆C. angustata C. B. Clarke	1 902	30°01′29″N	95°11′35″E
28	蔓龙胆属 Crawfurdia Wall.	穗序蔓龙胆C. speciosa Wall.	2 715	29°54′29″N	94°47′39″E
29	花锚属 Halenia Borkh.	椭圆叶花锚H. elliptica D. Don	3 279	29°45′57″N	94°44′04″E
30	假龙胆属 Gentianella Moench	黑边假龙胆Gentianella azurea（Bunge）Holub	4 294	29°36′49″N	94°41′17″E

编号 Number	花粉形状 Shape		赤道面观 Equatorial view	极面观 Polar view	孔沟 Colpus
1	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
2	椭球形Ellipsoid		椭圆形Oval	三角圆形Triangle circle	浅长不达极Superficial
3	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
4	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
5	椭球形Ellipsoid		超长方形Ultra rectangular	近三角形Near triangle	深长达极Deep to extreme
6	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
7	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
8	椭球形Ellipsoid		梭形Fusiform	三角圆形Triangle circle	深长达极Deep to extreme
9	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
10	椭球形Ellipsoid		梭形Fusiform	三裂圆形Three-cracked	深长达极Deep to extreme
11	椭球形Ellipsoid		近长方形Nearly rectangular	三裂圆形Three-cracked	浅短不达极Short and short
12	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
13	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
14	长椭球形Long ellipsoid		超长方形Ultra rectangular	三角圆形Triangle circle	浅长达极Shallow and long
15	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
16	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
17	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	浅长达极Shallow and long
18	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
19	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
20	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
21	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
22	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
23	近球形Near spherical		近长方形Nearly rectangular	三角圆形Triangle circle	浅短不达极Short and short
24	近球形Near spherical		近长方形Nearly rectangular	三角圆形Triangle circle	浅短不达极Short and short
25	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
26	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
27	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
28	近球形Near spherical		梭形Fusiform	三裂圆形Three-cracked	浅长达极Shallow and long
29	椭球形Ellipsoid		梭形Fusiform	三裂圆形Three-cracked	深长达极Deep to extreme
30	椭球形Ellipsoid		近长方形Nearly rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
编号 Number		极轴（P）/μm Polar axis	赤道轴（E）/μm Equatorial axis	P/E	体积指数 Size index
1		34.61 ~ 44.62（39.04）	17.02 ~ 22.85（19.08）	2.04	27.28
2		33.76 ~ 39.63（36.28）	20.51 ~ 25.81（22.35）	1.62	28.47
3		35.32 ~ 43.09（38.51）	17.21 ~ 23.03（19.72）	1.86	27.54
4		26.61 ~ 39.87（33.74）	13.25 ~ 21.06（17.36）	1.94	24.19
5		26.91 ~ 33.15（30.36）	17.28 ~ 21.51（19.02）	1.59	24.03
6		38.54 ~ 49.59（44.71）	19.06 ~ 27.54（22.87）	1.96	31.97
7		34.18 ~ 43.66（38.95）	13.65 ~ 20.92（16.84）	2.32	25.60
8		27.81 ~ 33.72（30.47）	17.92 ~ 21.06（19.31）	1.58	24.25
9		26.64 ~ 33.71（30.06）	14.39 ~ 18.04（16.33）	1.84	22.15
10		30.47 ~ 39.08（33.91）	17.04 ~ 22.03（18.65）	1.82	25.14
11		29.47 ~ 33.91（31.69）	20.09 ~ 25.42（22.87）	1.39	26.91
12		28.24 ~ 34.15（30.87）	17.35 ~ 21.37（19.12）	1.61	24.29
13		30.38 ~ 36.37（33.30）	13.28 ~ 16.92（14.98）	2.23	22.32
14		31.39 ~ 38.28（34.67）	13.29 ~ 16.21（14.82）	2.35	22.66
15		32.58 ~ 39.69（36.09）	17.92 ~ 23.03（20.88）	1.73	27.45
16		29.85 ~ 35.27（33.20）	19.35 ~ 23.18（21.77）	1.52	26.88
17		34.16 ~ 41.63（38.97）	22.41 ~ 25.37（23.68）	1.64	33.22
18		41.75 ~ 48.17（45.53）	22.39 ~ 25.72（23.93）	1.90	33.01
19		27.69 ~ 35.92（30.61）	15.82 ~ 19.17（17.36）	1.76	23.03
20		26.57 ~ 31.77（28.75）	15.94 ~ 18.62（17.02）	1.69	22.11
21		24.03 ~ 32.47（29.66）	14.09 ~ 19.38（16.36）	1.82	22.01
22		32.44 ~ 36.73（34.77）	15.89 ~ 20.62（18.51）	1.88	25.36
23		33.19 ~ 41.89（38.64）	31.09 ~ 39.75（35.84）	1.07	37.21
24		40.14 ~ 45.96（42.32）	39.13 ~ 44.69（40.93）	1.03	41.62
25		36.57 ~ 43.03（39.24）	19.27 ~ 22.08（21.13）	1.85	28.79
26		29.12 ~ 34.12（31.65）	17.08 ~ 20.17（18.19）	1.74	23.98
27		33.64 ~ 39.26（37.41）	21.81 ~ 25.74（23.96）	1.56	29.93
28		27.49 ~ 32.57（30.21)	25.77 ~ 30.53（28.76)	1.05	29.47
29		28.04 ~ 33.69（30.88)	17.66 ~ 27.34（22.86)	1.35	26.46
30		30.25 ~ 37.22（34.14）	17.13 ~ 27.02（20.31）	1.69	26.30

编号 Number	花粉形状 Shape		赤道面观 Equatorial view	极面观 Polar view	孔沟 Colpus
1	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
2	椭球形Ellipsoid		椭圆形Oval	三角圆形Triangle circle	浅长不达极Superficial
3	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
4	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
5	椭球形Ellipsoid		超长方形Ultra rectangular	近三角形Near triangle	深长达极Deep to extreme
6	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
7	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
8	椭球形Ellipsoid		梭形Fusiform	三角圆形Triangle circle	深长达极Deep to extreme
9	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
10	椭球形Ellipsoid		梭形Fusiform	三裂圆形Three-cracked	深长达极Deep to extreme
11	椭球形Ellipsoid		近长方形Nearly rectangular	三裂圆形Three-cracked	浅短不达极Short and short
12	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
13	长椭球形Long ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
14	长椭球形Long ellipsoid		超长方形Ultra rectangular	三角圆形Triangle circle	浅长达极Shallow and long
15	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	深长达极Deep to extreme
16	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
17	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	浅长达极Shallow and long
18	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
19	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
20	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
21	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
22	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
23	近球形Near spherical		近长方形Nearly rectangular	三角圆形Triangle circle	浅短不达极Short and short
24	近球形Near spherical		近长方形Nearly rectangular	三角圆形Triangle circle	浅短不达极Short and short
25	椭球形Ellipsoid		椭圆形Oval	三裂圆形Three-cracked	深长达极Deep to extreme
26	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
27	椭球形Ellipsoid		超长方形Ultra rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
28	近球形Near spherical		梭形Fusiform	三裂圆形Three-cracked	浅长达极Shallow and long
29	椭球形Ellipsoid		梭形Fusiform	三裂圆形Three-cracked	深长达极Deep to extreme
30	椭球形Ellipsoid		近长方形Nearly rectangular	三裂圆形Three-cracked	浅长达极Shallow and long
编号 Number		极轴（P）/μm Polar axis	赤道轴（E）/μm Equatorial axis	P/E	体积指数 Size index
1		34.61 ~ 44.62（39.04）	17.02 ~ 22.85（19.08）	2.04	27.28
2		33.76 ~ 39.63（36.28）	20.51 ~ 25.81（22.35）	1.62	28.47
3		35.32 ~ 43.09（38.51）	17.21 ~ 23.03（19.72）	1.86	27.54
4		26.61 ~ 39.87（33.74）	13.25 ~ 21.06（17.36）	1.94	24.19
5		26.91 ~ 33.15（30.36）	17.28 ~ 21.51（19.02）	1.59	24.03
6		38.54 ~ 49.59（44.71）	19.06 ~ 27.54（22.87）	1.96	31.97
7		34.18 ~ 43.66（38.95）	13.65 ~ 20.92（16.84）	2.32	25.60
8		27.81 ~ 33.72（30.47）	17.92 ~ 21.06（19.31）	1.58	24.25
9		26.64 ~ 33.71（30.06）	14.39 ~ 18.04（16.33）	1.84	22.15
10		30.47 ~ 39.08（33.91）	17.04 ~ 22.03（18.65）	1.82	25.14
11		29.47 ~ 33.91（31.69）	20.09 ~ 25.42（22.87）	1.39	26.91
12		28.24 ~ 34.15（30.87）	17.35 ~ 21.37（19.12）	1.61	24.29
13		30.38 ~ 36.37（33.30）	13.28 ~ 16.92（14.98）	2.23	22.32
14		31.39 ~ 38.28（34.67）	13.29 ~ 16.21（14.82）	2.35	22.66
15		32.58 ~ 39.69（36.09）	17.92 ~ 23.03（20.88）	1.73	27.45
16		29.85 ~ 35.27（33.20）	19.35 ~ 23.18（21.77）	1.52	26.88
17		34.16 ~ 41.63（38.97）	22.41 ~ 25.37（23.68）	1.64	33.22
18		41.75 ~ 48.17（45.53）	22.39 ~ 25.72（23.93）	1.90	33.01
19		27.69 ~ 35.92（30.61）	15.82 ~ 19.17（17.36）	1.76	23.03
20		26.57 ~ 31.77（28.75）	15.94 ~ 18.62（17.02）	1.69	22.11
21		24.03 ~ 32.47（29.66）	14.09 ~ 19.38（16.36）	1.82	22.01
22		32.44 ~ 36.73（34.77）	15.89 ~ 20.62（18.51）	1.88	25.36
23		33.19 ~ 41.89（38.64）	31.09 ~ 39.75（35.84）	1.07	37.21
24		40.14 ~ 45.96（42.32）	39.13 ~ 44.69（40.93）	1.03	41.62
25		36.57 ~ 43.03（39.24）	19.27 ~ 22.08（21.13）	1.85	28.79
26		29.12 ~ 34.12（31.65）	17.08 ~ 20.17（18.19）	1.74	23.98
27		33.64 ~ 39.26（37.41）	21.81 ~ 25.74（23.96）	1.56	29.93
28		27.49 ~ 32.57（30.21)	25.77 ~ 30.53（28.76)	1.05	29.47
29		28.04 ~ 33.69（30.88)	17.66 ~ 27.34（22.86)	1.35	26.46
30		30.25 ~ 37.22（34.14）	17.13 ~ 27.02（20.31）	1.69	26.30

纹饰类型 Ornamentation type	纹饰特征 Ornamentation character	编号 Number	表面分布程度 Density	网眼大小 Lumina size	附属物 Appendage
条纹—网状 Striped mesh	以凸起的条纹脊条为主,脊条之间相连接形成不规则的网脊和网眼 Mainly with raised striped ridges,the ridges are connected to form irregular ridges and meshes	1,2,5,7, 8	相对稀疏 Relatively sparse	中等或较小 Medium or small	—
		10			疣片状Lumpy
		11			颗粒状Granular
		12			—
		14,17			疣片状Lumpy
		20			—
		21,25			颗粒状Granular
		27,28			—
孔穴状 Cavities	表面平整光滑,具凹进的大小不一孔穴,数量较多,有疣状突起分布 The surface is flat and smooth,with recessed holes of various sizes,a large number,and verrucose protrusions	3	相对密集 Relatively dense	较小Smaller	疣片状Lumpy 颗粒状Granular
		13	相对密集 Relatively dense	较小Smaller	疣片状Lumpy 颗粒状Granular
		30			—
网状Mesh	表面长短不一脊柱条带连接形成大小不一的网眼,形成各种大小网纹 Irregular ridges on the surface,randomly distributed to form irregular meshes	4,9,15	密集Dense	较大或中等 Large or medium	—
		16,19,22,26			颗粒状Granular
		29				—
脑纹网状 Stria reticulate	由脑纹状的弯曲线条组成,轮廓线为低平的波浪形,如同脑皱状 Composed of curved lines like brain striated,contour line is low and flat wavy,like brain wrinkle	6	相对稀疏 Relatively sparse	中等或较小 Medium or small	—
脑纹网状 Stria reticulate		18	相对稀疏 Relatively sparse	中等或较小 Medium or small	颗粒状Granular
网状雕纹 Reticulated carving	表面突起的脊条相互连接,形成内孔网眼明显的网状雕纹,网格清晰可见 The protruding ridges on the surface are connected to each other to form a net-like carved pattern with a clear inner hole mesh,and the grid is clearly visible	23,24	密集Dense	较大或中等 Large or medium	疣片状Lumpy

Pollen Morphological Characteristics of 30 Species of Gentianaceae in Shergyla Mountain Area,Tibet

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