[Pollen morphology identification of five species of medicinal sanguisorba with electron microscope].
OBJECTIVE
To approach a new evidence for identifying various species of Rosaceae Sanguisorba, especially for distinguishing S. applanata from S. sitchinese.


METHODS
The pollens of five species S. officinalis, S. officinalis var. longifolia, S. applanata, S. applanata var. villosa and S. sitchinese were morphologically identified with electron microscope.


RESULTS
The pollens are prolate or perprolate, having six colporates and featuring sculptures of small caverns and small granules combined. The species are closed to each other in pollen morphology, bur display differences in the diameter of pollens, clarity of pore membrane and presence or absence of irregular verrucous sculptures.


CONCLUSIONS
This paper provides a new evidence for identifying the Sanguisorba.
Li
F
F
Shandong Medical University of Traditional Chinese Medicine, Jinan 250014.
Wan
P
P
Gao
S
S
Ding
Y
Y
Zhou
F
F
D008855:Microscopy, Electron, Scanning; D010598:Pharmacognosy; D010946:Plants, Medicinal / Q000145:classification / Q000648:ultrastructure; D011058:Pollen / Q000648:ultrastructure*; D031993:Sanguisorba / Q000145:classification / Q000648:ultrastructure