Kumanoa globospora (Isrealson) Entwisle, M.L. Vis, W.B. Chiasson, Necchi & A.R. Sherwood  

"Plants moderately mucilaginous, delicate; branching irregular and abundant; apices straight, apical cells embedded within the fascicle tips; 3.0-5.0 cm high, 300-600 µm in diameter. Whorls well developed, usually distinct and separated, obconic or barrel-shaped. Internode 270-450 µm long. Pericentral cells ovoid with 2-3 primary fascicles; rhizoidal filaments well developed, forming 1-2 layers of cylindrical cells. Primary fascicles straight, 7-12 cell-storeys, proximal cells elliptical or fusiform, L/D 3.5-7.0; distal cells elliptical or fusiform, L/D 3.0-5.0; branching dichotomous. Secondary fascicles abundant, covering the entire internode and as long as primary fascicles.

Monoecious. Spermatangia sub-spherical or obovoid, terminal or sub-terminal on primary or secondary fascicles, 6.0-7.5 µm in diameter. Carpogonial branches helically twisted, arising from pericentral cells, composed of 4-7 disc- or barrel-shaped cells; involucral filaments short, 1-3 cell-storeys; carpogonia 20-34(-40) µm long; trichogynes cylindrical, elliptical or club-shaped, stalked or unstalked, 4.5-9.5(-12.0) µm in diameter. Carposporophytes 1 per whorl, loose, semi-spherical, lower than the whorl radius, (160-)200-350(-420) µm in diameter, (80-)100-200(-305) µm high; gonimoblast filaments 4-8 cell-storeys; cells cylindrical or elliptical; carposporangia sub-spherical or obovoid, 9.0-13.0(-15.0) µm long, 6.0-11.0 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.

Kumano, S. 2002. Freshwater red algae of the world. Biopress Ltd. 375pp.

Isrealson, G. 1942. The freshwater Floridae of Sweden. Studies on their taxonomy, ecology, and distribution. Symb. Bot. Upsal. 6(1). 134 pp.