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  • Author: Bruce Allen x
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Brachymenium Regnellii and Bryum Leptotorquescens (Bryaceae) New to Suriname

Abstract

The previously Brazilian endemic species, Brachymenium regnellii Hampe, has been found in Suriname. It is a member of sect. Rostrata Ochi, distinguished from all other members of that section in Suriname by its percurrent costae. Brachymenium Schwägr. is characterized by the sporophytic features of: erect to suberect capsules; conic-apiculate to short-beaked opercula; and diplolepideous peristomes with narrow, densely papillose exostome teeth and greatly reduced endostomes. Bryum leptotorquescens Müll. Hal ex Broth., previously known from Mexico to western South America, and tropical Africa is reported from Suriname. It differs from other similar mosses in Suriname by the combination of weakly developed leaf borders; strongly decurrent leaves; and costae in cross section with well-developed stereid bands. Bryum billarderei Schwägr. is the correct spelling of that often mis-spelled name.

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The paraleucobryoid Campylopus complex (Leucobryaceae) in South American páramos

Abstract

The paraleucobryoid Campylopus complex consists of a small group of Andean species distinguished by a leaf cross section identical to that of Paraleucobryum. The complex differs from Paraleucobryum only in having cygneous rather than erect setae and capsule stomata absent rather than present. Here we treat four species, only two of which have previously been recognized in Campylopus. They are C. albidovirens Herzog, C. pittieri R.S.Williams, C. densifolius (Thér.) B.H.Allen & W.R.Buck, comb. nov. and C. ochyriorum B.H.Allen & W.R.Buck, sp. nov. A key is given to the four species; the two nomenclatural novelties are described in detail and illustrated.

Open access
A New Species of Isopterygium (Pylaisiadelphaceae) from Central America

Abstract

Isopterygium zunilense (Pylaisiadelphaceae) is described from a montane cloud forest in Guatemala. It is distinguished by its large stature with leaves rounded to the insertions.

Open access
Octoblepharum Pocsii, Sp. Nov. A Fragile- and Long-Leaved Species in the O. Albidum – Complex from Africa

Abstract

Octoblepharum pocsii (Calymperaceae) is described from Mount Nimba in Guinea, Africa. It is distinguished by very long, fragile leaves, 8 peristome teeth, small spores and growth on soil.

Open access