Craspedocarpus humilis C.W.Schneider 1988

Publication Details
Craspedocarpus humilis C.W.Schneider 1988: 2, figs 1-18

Published in: Schneider, C.W. (1988). Craspedocarpus humilis sp. nov. (Cystocloniaceae, Gigartinales) from North Carolina, and a reappraisal of the genus. Phycologia 27: 1-9.

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Type Species
The type species (holotype) of the genus Craspedocarpus is Craspedocarpus erosus (Hooker f. & Harvey) F.Schmitz.

Status of Name
This name is of an entity that is currently accepted taxonomically.

Type Information
Type locality: Onslow Bay, North Carolina; R/V Eastward Sta. No. 17671; (Schneider 1988: 2) Holotype: C.W. Schneider & R.B. Searles; 4 August 1971; dredged from a depth of 35 m ; DUKE; 14141 (Schneider 1988: 2) Notes: Isotype US)

Origin of Species Name
Adjective (Latin), low, low-growing (Stearn 1973).

General Environment
This is a marine species.

Plants erect and lax, saxicolous or conchicolous, dark rosy-red, 2-3.5 cm tall, arising from small discoidal holdfasts, at times secondarily attached by rhizoidal outgrowths from margins; axes flattened, 2-3 mm broad in main axes, tapering to 1 mm in lesser branches, 300-450 µm thick, alternately and suboppositely branched to four orders from the margins, appearing pinnate, often arcuate, with marginal linear-lanceolate proliferations in lower portions, apices acute; axial row obvious in cross-section, cells 7-20 µm in diam., to 500 µm long, surrounded by a medulla of large hyaline, transversely compressed cells to 200 µm wide, decreasing in size from center outwards to a two-layered, densely pigmented cortex, surface cells forming an incomplete, rosette-like layer around subsurface cortical cells, rosette cells occasionally bearing short, unicellular hairs to 500 µm long; rosette cells 5-30 µm in diam., subglobose to highly irregular in surface view, subsurface cells subglobose to irregularly ellipsoidal in surface view; tetrasporangia ellipsoidal to obovoid and arcuate, zonately divided, 28-43 µm in diam., 50-75 µm long, in extensive irregular sori covering the main axes and branches, occasionally restricted in small, distinct sori in youngest portions; monoecious, spermatangia globose to obovoid, formed on rosette cells in small rosettes throughout, 2-3 µm in diam.; procarpic, carpogonial branches 3-celled, carposporangia subglobose to obovoid, 17-30 µm in diam., formed in terminal chains on gonimoblasts surrounding large-celled tissues; cystocarps marginal, rarely on laminae, hemispherical with globose carposporophytes, 425-625 µm in diam., surrounded by stretched cortical cells and producing thin pericarps without ostioles.

Created: 19 June 1998 by M.D. Guiry.

Last updated: 13 December 2017

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 13 December 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 02 October 2023

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