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LIGHT AND SCANNING ELECTRON MICROSCOPIC STUDIES ON POLLEN OF TETRAPLASANDRA (ARALIACEAE) AND RELATIVES
Author(s) -
Tseng Charles C.
Publication year - 1971
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1971.tb09998.x
Subject(s) - pollen , biology , botany , genus
Pollen of seven species in Tetraplasandra and three species in related genera were studied with light and scanning electron microscopes. A new thin‐section technique was employed for the study of exine stratification and apertural structure. This study reveals several previously undescribed pollen structures for the group. Trends toward increase in pollen size and in specialization of other pollen characters are evident in Tetraplasandra . Pollen of Reynoldsia and Peekeliopanax differs from Tetraplasandra in the pertectate sexine and the absence of inner nexinous breaks, respectively. A pollen correlation study shows that Munroidendron falls readily within the genus Tetraplasandra but is distinguishable from the latter by its bifurcate colpi.