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Distribution

provided by Batrachospermales LifeDesk

Type Locality: Brazil

Distribution: Brazil

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cc-by-nc
copyright
Thrush, Mariah
author
Thrush, Mariah

Morphology

provided by Batrachospermales LifeDesk

"Plants moderately mucilaginous, rigid; branching pseudodichotomous and abundant; apices straight, apical cells embedded within the fascicles; 1.5-6.0 cm high, 350-700 µm in diameter. Whorls well developed, usually distinct and separated, obconical, compressed and indistinct in older parts. Internode 150-500 µm long. Pericentral cells spherical, 1-2 primary fascicles; rhizoidal filaments well developed, forming 1-2 layers of cylindrical cells. Primary fascicles audouinelloid, curved, 12-20 cell-storeys, proximal cells cylindrical, L/D 2.5-5.0; distal cells cylindrical or barrel-shaped, L/D 1.5-3.5; branching unilateral or alternate. Secondary fascicles abundant, curved, covering the entire internode and as long as primary fascicles.

Monoecious. Spermatangia spherical or obovoid, terminal or sub-terminal on primary or secondary fascicles, rarely on involucral filaments, 5.0-8.0 µm in diameter. Carpogonial branches helically twisted, arising from pericentral cells, composed of 5-10 disc- or barrel-shaped cells; involucral filaments short, 2-5 cell-storeys; carpogonia 35.0-50 µm long; trichogynes club-shaped or elliptical, unstalked, 7.0-10.0 µm in diameter. Carposporophytes1 per whorl, dense, semi-spherical, higher than the whorl radius, 350-800 µm in diameter, 250-500 µm high; gonimoblast filaments 7-10 cell-storeys; cells cylindrical; carposporangia obovoid or sub-spherical, 13.0-19.0 µm long, 10.0-17.0 µm in diameter."

Necchi, O. Jr. & Vis, M.L. 2012. Monograph of the genus Kumanoa (Rhodophyta, Batrachospermales). Bibliotheca Phycologica 116. J. Cramer. Pp. 78. ISBN 978-3-443-60043-3.

license
cc-by-nc
copyright
Thrush, Mariah
author
Thrush, Mariah