Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Joseph M. Beitel"'
Publikováno v:
American Fern Journal. 82:63
The Pacific Firmoss (Huperzia miyoshiana (Makino) Ching) is an amphi-Pacific element of the Huperzia selago complex (Huperzia selago (L.) Bernh. ssp. miyoshiana (Makino) Calder & Taylor (Beitel, 1986)). It grows on exposed, rocky subalpine slopes wit
Autor:
Joseph M. Beitel, John T. Mickel
Publikováno v:
American Fern Journal. 82:41
The gemmiferous firmosses, containing the type species of Huperzia, Huperzia selago, are distinguished from the other members of Huperzia by concave-sided spores and specialized lateral branches consisting of gemmiphores and detachable gemmae. The sp
Autor:
Joseph M. Beitel, Warren H. Wagner
Publikováno v:
Annals of the Missouri Botanical Garden. 79:676
Generic classification of North American Lycopodiaceae is analyzed in terms of the general factors that govern the recognition of the rank of genus, the character states that determine affinities, the hypothetical common ancestral groundplan, a tree
Publikováno v:
Kew Bulletin. 45:596
Publikováno v:
Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences. 86:273-281
SynopsisPteridophytes with subterranean sexual stages exist in five families. Their prothalli grow underground without light, nourished by fungi, and are rounded, massive, and without chlorophyll. Various authors have suggested that such gametophytes
Autor:
Michael J. Balick, Joseph M. Beitel
Publikováno v:
Economic Botany. 43:373-377
The recommendation that condoms be used to limit the transmission of AIDS has resulted in their increased utilization. One major brand of non-lubricated condoms was demonstrated to be coated withLycopodium clavatum spores, a product of known hazardou
Autor:
Michael J. Balick, Joseph M. Beitel
Publikováno v:
Nature. 332(6165)
Autor:
Joseph M. Beitel, George R. Proctor
Publikováno v:
Brittonia. 37:235
Autor:
Alan Mitchell, Joseph M. Beitel
Publikováno v:
Brittonia. 40:336
This authoritative, easy-to-use, and handsome book encourages a full appreciation of both native and introduced trees.
Autor:
W. B. G. Jacobsen, Joseph M. Beitel
Publikováno v:
Brittonia. 39:143