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William Russel Buck (born December 27, 1950) is an American bryologist. [1] [2] [3]
The standard author abbreviation W.R.Buck is used to indicate this person as the author when citing a botanical name. [4]
He edited the exsiccata Bryophytorum Typorum Exsiccata (1981-1985), distributed by The New York Botanical Garden. [5]
Andreaeaceae is a family of mosses which includes two genera, Andreaea, containing about 100 species, and the genus Acroschisma. The Andreaeaceae prefer rocky habitats ranging from tropical to arctic climates, on which they form tufted colonies, typically with reddish to blackish shoots. The capsules lack the peristome mechanism and dehisce longitudinally to release the spores, resulting in a paper-lantern appearance.
The Bryopsida constitute the largest class of mosses, containing 95% of all moss species. It consists of approximately 11,500 species, common throughout the whole world.
Orthotrichaceae is the only family of mosses in the order Orthotrichales. Many species in the family are epiphytic.
Grimmiales is an order of mosses in the subclass Dicranidae. It comprises four families: Grimmiaceae, Ptychomitriaceae, Seligeriaceae, and Saelaniaceae.
Sphagnopsida is a class of mosses that includes a single subclass Sphagnidae, with two orders. It is estimated it originated about 465 million years ago, along with Takakia. The order Sphagnales contains four living genera: Ambuchanania, Eosphagnum, and Flatbergium, which counts four species in total, and Sphagnum which contains the rest of the species. The extinct Protosphagnales contains a single fossil species.
Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses with a thickened central stem and a rhizome. The leaves have a midrib that bears photosynthetic lamellae on the upper surface. Species in this group are dioicous. Another characteristic that identifies them is that they have from 32 to 64 peristome teeth in their sporangium.
Seligeriaceae is a family of mosses in the subclass Dicranidae.
Andreaeobryum is a genus of moss with a single species Andreaeobryum macrosporum, endemic to Alaska and western Canada. The genus is placed as a separate family, order and class among the mosses.
Bryales is an order of mosses.
Gigaspermaceae are a family of mosses in the monotypic order Gigaspermales. The order is placed in subclass Gigaspermidae of the class Bryopsida. They were previously placed in subclass Funariidae.
Encalyptales is an order of mosses in subclass Funariidae. It contains a single family.
Timmia is a genus of moss. It is the only genus in the family Timmiaceae and order Timmiales. The genus is named in honor of the 18th-century German botanist Joachim Christian Timm.
Dicranales is an order of haplolepideous mosses in the subclass Dicranidae.
Hypnales is the botanical name of an order of Bryophyta or leafy mosses. This group is sometimes called feather mosses, referring to their freely branched stems. The order includes more than 40 families and more than 4,000 species, making them the largest order of mosses.
Bryaceae is a family of mosses.
Amblytropis is a genus of moss in family Pilotrichaceae.
Mniaceae is a moss family in the order Bryales.
Ptychomitriaceae is a family of mosses in the subclass Dicranidae.
Drummondia is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Drummondiaceae.
Wijkia is a genus of mosses belonging to the family Pylaisiadelphaceae.
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