Asterocapsa sp. 2

Asterocapsa sp. 2 ( Figs. 4G–4I View FIGURES 4 ).

Round, elongated to irregular colonies, 5.5–79.7 µm diam., isolated or in groups. Sheath firm, hyaline to reddishbrown and violet, conspicuous, rarely lamellate, smooth to granulate. Cells ellipsoid to irregular, 3.8–5.7 × 2.5–3.9 µm. Spores dark reddish-brown, solitary, 5.4–7.4 × 3.5–5.6 µm. Cell content granulated, green to blue-green.

Habitat: —Dry concrete wall.

Notes: — Asterocapsa sp. 2 is a peculiar morphotype since the granulation in its sheaths are rarely observed, seen only under immersion ( 1000x). Despite this, the Atlantic Rainforest population has the typical life cycle described for Asterocapsa Chu (1952: 97) , and differs from other species by sheath color, elliptical shape, and cell dimensions.

Studied material: — BRAZIL. São Paulo: Peruíbe, Ecological Station “Juréia-Itatins”, 24° 23.013’ S, 47° 4.836’ W, 17 August 2011, W.A. Gama-Jr., G.S. Hentschke, C.F.S. Malone & C.L. Sant’Anna (SP 427324) GoogleMaps ; 24° 22.739’ S, 47° 4.719’ W, W.A. Gama-Jr., G.S. Hentschke, C.F.S. Malone & C.L. Sant’Anna (SP 427333) GoogleMaps ; Cananéia, State Park of “Ilha do Cardoso” ( Perequê ), 25º 4’ 8” S, 47º 55’ 12.24” W, 29 June 2010, W.A. Gama-Jr. & C.F.S. Malone (SP 401440, SP 401438) GoogleMaps .