21(1 PETCH : 



Berlin, lias stroiuata two-tliirds globose, uj) to 3 mm. diamotei', 

 hard, smooth, red-brown becoming black ; it is unripe, but shows 

 tubular or irregular pycnidia penetrating to the middle ; it appears 

 to be immature H. cavernosa. " Puttemans, 788, on dead 

 branches, Serra da Cantareira," suh Aschersonia sclerotioidcs in 

 Herb. Berlin, has stromata similar to Ule 2627 and contains 

 immature asci. 



A collection made by Thaxter in Trinidad consists of the 

 Aschersonia stage only. Some of the specimens are small, flat- 

 tened pulvinate, irregular, and somewhat effete. The larger 

 specimens are subhemispherical, 3 mm. diameter, even or convo- 

 luted. They are now grayish-white, becoming purple-black ; 

 white internally. The pycnidial orifices are blackish, becoming 

 lacerated when old. The pycnidia are tubvUar, either short, 

 about • 4 mm. deep, smiple or convoluted at the base, or penetra- 

 ting deeper and appearing as circular or oval cavities in section. 

 The pycnospores are smaller than in the type and measure 10-14 

 X 4-5^. 



In Herb. Berlin there is a specimen, suh Hypocrella luteo-olivacea 

 Winter, labelled " Brasilia : Prov. Sao. Paulo ; auf Myrtqcese 

 sp. Leg. F. Noack. Comm. P. Sydow." The stromata match 

 those from Trinidad, but are perithecial. They are subglobose, 

 convoluted, up to 3 mm. diameter, dirty white, with brown 

 ostiola,which do not project ; they are hard, and white internally. 

 The perithecia are flask-shaped, up to 0-45 mm. deep and 0'15 

 vaxn. diameter ; the wall of the perithecium is yellow. The part- 

 spores are oval, 9-12 x 3-4 [x. This appears to be the Hypocrella 

 form of H. cavernosa. 



Distribution. — Brazil, in Herb. Kew and Herli. Bei'lin. 

 Trinidad, in Herb. Thaxter. 



Figures. — Plate 2, fig. 4, Aschersonia stage, viewed from above, 

 Trinidad specimen, x 6 ; Plate 4, fig. 14, section, after MoUer, 

 X U- 



Hypocrella scutata (Cooke) Sacc, Michelia, I., i>. 580 (1878). 

 — Circular, up to 1 cm. diameter, flattened convex, up to 2 mm. 

 thick in the centre, margin acute or obtuse, surface even, 

 glabrous, pale-brown, dotted with red-brown ostiola, or dark 

 brown in herbarium specimens ; colour " bright ochraceous 

 orange " when fresh ; substance resinous, fracture vitreous ; 

 hjrpothallus when present, membranous, translucent ; lower 

 surface flat, translucent yellow-brown, marked with a central, 

 yellowish, opaque spot from which radiate numerous, 

 frequently anastomosing, yellow lines. Perithecia rather 

 deeply sunk, flask-shaped or laterally compressed, up to 0*8 

 mm. deep ; asci. 400-500 x 8-10 [x, eylindric, eight-spored ; 

 part-spores eylindric with rounded ends, 3-6 x 1 * 5 [x. 

 Hypocrea scutata Cooke, Grevillea, VII., p. 14 (1878). 



