NDLI: Pollen morphology in Lysipomia (Campanulaceae: Lobelioideae) and interpretation of shape artifacts

Content Provider	Springer Nature Link
Author	Price, Kevin J. Ayers, Tina J.
Copyright Year	2008
Abstract	The pollen of 32 species of Lysipomia was examined by light, scanning, and transmission electron microscopy. Two pollen types occur in the genus: 3-colporate and 6-colporate. The 3-colporate condition occurs in only two species, L. laciniata and L. pumila. The remaining 30 species are 6-colporate, a condition known from only one other genus in the Campanulaceae. Surface sculpturing among the species is uniformly striate. Pollen shape was highly variable within a single individual in comparisons of pollen gathered from herbarium specimens, FAA preserved material collected in the field, and fresh pollen from cultivated individuals grown from seed. Shape may change from oblate spheroidal to subprolate as a result of drying time and temperature, and should not be used as a morphological character in systematic studies if infraspecific variation is seen. When fresh or preserved pollen is not available, rehydrated pollen should be compared to reduce the possibility of inadvertent artifact production confounding the analysis of morphological data.
Starting Page	297
Ending Page	302
Page Count	6
File Format	PDF
ISSN	0007196X
Journal	Brittonia
Volume Number	60
Issue Number	3
e-ISSN	1938436X
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-09-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Campanulaceae Lobelioideae Lysipomia pollen morphology SEM TEM Plant Ecology Plant Physiology Plant Anatomy/Development Plant Systematics/Taxonomy/Biogeography Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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