Asterocapsa sp. 1

Jr, Watson Arantes Gama, Iv, Haywood Dail Laughinghouse & Sant’Anna, Célia Leite, 2014, How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil), Phytotaxa 178 (2), pp. 61-97 : 69

Asterocapsa sp. 1 ( Figs. 4E–4F ).

Round colonies, rarely irregular, 8.7–51.2 µm diam., isolated or in groups. Sheath firm, hyaline, conspicuous, nonlamellate, granulated. Cells ellipsoid, 3.3–5.5 × 2.3–4.0 µm. Spores not observed. Cell content granulated, pale purple.

Habitat: —Tree bark in the inner forest.

Notes: —As diacritical features, Asterocapsa sp. 1 has a corticolous habitat, ellipsoid cells, and hyaline and nonlamellate sheaths. Asterocapsa hyalina ( Chu 1944: 153) Chu (1952: 100) and Asterocapsa ocellata H.X. Xiao (2000: 399) most resemble Asterocapsa sp. 1 , differing by the epilithic habitat of both, and by spines on the individual sheath of A. hyalina and dark and verrucous cell envelopes in A. ocellata .

Studied material: — BRAZIL. São Paulo: Cananéia, State Park of “Ilha do Cardoso” ( Perequê ), 25º 5” 8” S, 47º 55” 30” W, 30 June 2010, W.A. Gama-Jr. & C.F.S. Malone (SP 401442, SP 401444) .

Figures

FIGURES 4A. Coelosphaeriopsis sp. General aspect of a colony and detail of cells in individual envelopes (arrow).