HYPOCRELLA AND ASCHERSONIA. 237 



by Spegazzini, in Fungi Puiggariani No. 475 ; the specimens are 

 discoid, depressed in the centre, gray with a sHght reddish tinge ; 

 there is the same tinge in the centre of some of the stromata in 

 the type of A. disctformis. The type of Aschersonia viridula 

 Sacc, kindly lent me by Professor Thaxter, is Aschersonia viridans; 

 the specimens do not differ from the normal. From the number 

 of specimens submitted to me by Professor Thaxter, Aschersonia 

 viridans would appear to be as common in Trinidad as A. samoensis 

 is in Ceylon ; in one gathering none of the stromata exceed 1'25 

 mm. in diameter, and some have only one pycnidium ; in another, 

 the stromata are slightly elevated in the centre ; a third gatliering 

 contains Aschersonia stromata, Hypocrella stromata, and others 

 in which both stages occui*. The Hypocrella stromata are exactly 

 parallel to those of Hypocrella discoidea. 



Distribution. — Cuba, in Herb. Kew {Hypocrea viridans). 

 Ecuador, in Herb. Patouillard (A. disciforms). Bi'azil, in Herb. 

 Spegazzini (Fvmgi Puigg., No. 475) and Herb. Kew (sub Hypocrea 

 amazonica). Mexico {A. viridula). Trinidad, in Herb. Thaxter. 



Figures. — Plate 3, fig. 37, Aschersonia stage, ex Herb. Spegaz- 

 zini, X 8 ; Plate 3, fig. 38, Aschersonia, ex type of Aschersonia 

 disciformis, x 8 ; Plate 5, fig. 49, Aschersonia, section, x 6. 



Hypocrella palmicola P. Henn., in Voeltzkow, Reise Ost- 

 Afrika, III., p. 29 (1908). — Pycnidial stroma circular, flattened 

 pulvinate, or hemispherical, minute, '8-1 mm. diameter and 

 up to 0*6 mm. high, upper surface even, or umbilicate in the 

 centre ; minutely tomentose ; dark chestnut-brown, internally 

 pallid or brownish ; pycnidium usually single in the centre of 

 the stroma, laterally oval, • 3-0 • 4 mm.diameter, • 2-0 • 3 mm. 

 high : pycnospores fusoid, 4-6 X 1 " 5 ^., ends pointed, but not 

 produced ; paraphyses up to 130 [i, long. Perithecial stroma 

 discoid, up to 5 mm. diameter, • 9 mm. thick in the centre, 

 thinning out towards the margin, slightly undulating, some- 

 times umbilicate in the centre, dark chestnut-brown to 

 blackish-brown, ostiola projecting or not ; perithecia broadlj" 

 flask-shaped, 0'2-0'25 mm. deep, 110-130 j;, diameter; asci 

 80-100 X 4 \j.; part-spores cyUndric, 5-7 X 1'5 fji,. 



The type in Herb. Berlin from " He aux Prunes (O. Mada- 

 gaskar) " contains only one specimen. It is about 5 mm. in 

 diameter, • 9 mm. thick near the centre, thinning out to • 2 nun. 

 at the margin. The specimen is rather old, and is now blackish- 

 brown, closely dotted with black ostiola ; internally it is brown, 

 with an outer red-brown zone about 0'2 mm. deep. The centre 

 is umbilicate and surrouiaded by pycnidia, which open into the 

 depression. Elsewhere the stroma bears crowded perithecia 



