J Syst Evol ›› 1982, Vol. 20 ›› Issue (1): 45-48.
• Research Articles •
Sheh Meng-Lan, Su Pu, Shan Ren-Hwa
This paper deals with the studies of pollen morphology of 8 genera including 22
species and 1 variety of Umbelliferae (Apiaceae). They have been investigated under
both the light microscope and the SEM. These genera can be distinguished by their
pollen characters. The observed data listing in the following table reveal that they
can be distinguished according to shape of pollen, form of pores, sculpture of exine
and size of grains etc.
1. Shape of pollen grains
(1) subrhomboidal type: Chuanminshen Sheh et Shan, Changium Wolff,
Cyclorhiza Sheh et Shan
(2) oval type: Seseli L.
(3) subrectangular type
a. thickened at the equator and rugulose: Peuecdanum L.
b. constricted at the equator and rugulose: Ligusticum L.
e. constricted at the equator and rugulose, thickened at both polar zones:
(4) equatorially-constricted type, rugulose at the equator, thickened at both
polar zones: Ferula L.
2. Form of aperture
(1) rectangular protrude type: Chuanminshen Sheh et Shan, Ferula L.,
(2) circular type: Ligusticum L.
(3) elliptic type: Peucedanum L., Vicatia DC., Seseli L.
3. Sculpture of exine
(1) reticulate: Chuanminshen Sheh et Shah
(2) pitted-reticulate: Changium Wolff
(3) striate-reticulate: Ferula L., Peucedanum L., Ligusticum L., Seseli L.,
(4) cerebro-reticulate: Cyclorhiza Sheh et Shan
Basing upon the above pollen characters, the genera Cyclorhiza Sheh et Shah and
Chuanminshen Sheh et Shan are briefly discussed. They are two clearly delimitatednatural genera.
Sheh Meng-Lan, Su Pu, Shan Ren-Hwa. Pollen morphology of 8 genera of Chinese Umbelliferae (Apiaceae)[J]. J Syst Evol, 1982, 20(1): 45-48.
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