A Study on Pollen Morphology of Potamogeton, Zannichellia and Triglochin from China

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A Study on Pollen Morphology of Potamogeton, Zannichellia and Triglochin from China

Wang Jing-Quan

(Institute of Botany, Northwestern Teachers University, Lanzhou 730070)

Received:1900-01-01 Revised:1900-01-01 Online:1990-09-10 Published:1990-09-10
Contact: Wang Jing-Quan

Abstract

Abstract:

The pollen morphology of 19 species in the genera Potamogeton, Zannichellia and

Triglochin from China was examined under light and scanning electron microscopes.

1. Pollen characteristics

(1) Potamogeton L. (Plate 1, 2:1-8) Pollen grains spheroidal, subspheroidal, rarely ob-

late or ovoid, (17-35)24.41×27.76(18-45)μm in size; anaperturate; exine 1-2μm thick, 2-

layered or obscure; crass-reticulate, reticulate or finely-reticulate under LM, distinctly reticulate

under SEM; muri uniform or not uniform, smooth or granular, rarely with processes; bacula

thicker or thinner at the intersection of muri.

(2) Zannichellia L. (Plate 2:9) Pollen grains spheroidal, ,(20-26)23.1×24.15(21-27)

μm in size; anaperturate; exine 1 μm thick, stratification obscure; nearly reticulate under LM,

shallowly reticulate under SEM; luminae shallow, large and irregular, muri very thin and

not uniform; bacula absent.

(3) Triglochin L. (Plate 2:10-11) Pollen grains spheroidal or subspheroidal; (20-

30)23.65×23.7(20-30) μm in size; anaperturate; exine about 1μm thick, stratification obscure,

finely reticulate under LM, distinctly reticulate under SEM; luminae rather large or minute;

muri uniform, with 1-2 lines of granules, bacula present or absent.

2. Pollen types of Potamogeton L.

(1) Thin muri--thick bacula: Potamogeton pectinatus, P. intramongolicus, P. filifor-

mis, P. pamiricus; (2) Uniform muri and bacula: 1) Large pollen subtype: Potamogeton

crespus; 2) Medium-sized pollen subtype: Potamogeton heterophyllus, P. perfoliatus, P. distin-

ctus, P. malaianus; 3) Minute pollen subtype: Potamogeton oxyphyllus, P. obtusifolius, P. lu-

cens, P. cristatus, P. gramineus, P. octandrus, P. pusillus

Key words: Potamogeton, Zannichellia, Triglochin, Pollen morphology

Wang Jing-Quan. A Study on Pollen Morphology of Potamogeton, Zannichellia and Triglochin from China[J]. .

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[4]	LI Wei-Lin, HE Shan-An, GU Yin, SHU Pu, PU Zu-Mao. Pollen morphology of the genus Rubus from China [J]. , 2001, 39(3): 234-247.
[5]	. [J]. , 2001, 18(1): 11-11.
[6]	SUN Kun, ZHANG Zhi-Yun, CHEN Jia-Kuan. Floral organogenesis of Potamogeton distinctus A. Benn. (Potamogetonaceae) [J]. , 2000, 38(6): 528-531.
[7]	SUN Cheng-Ren. Pollen morphology of the Schisandraceae and its systematic significance [J]. , 2000, 38(5): 437-445.
[8]	XI Yi-Zhen, LANG Kai-Yong, HU Yu-Shi. Pollen Morphology of Neottianthe (Orchidaceae) and Its Taxonomic Significance [J]. , 1998, 36(6): 496-502.
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A Study on Pollen Morphology of Potamogeton, Zannichellia and Triglochin from China

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