238 FETCH : 



confined to tlie red-brown zone, with projecting ostiola. The 

 spores in the pycnidia are fused into a brownish mass, and it is 

 not easy to detect the paraphyses. A second gathering of this 

 species was made by Thaxter, on Adiantum, Port of Spain, 

 Trinidad. Some of the specimens are only " 8 mm. diameter, and 

 contain a large central pycnidium with a few perithecia round it. 

 Others are discoid, up to 1 • 5 mm. diameter, and contain perithecia 

 only ; the perithecia in these are scattered, and their ostiola do 

 not project ; the intenaal red-brown zone is lacking in these 

 specimens, but that, as in other species, may be only formed 

 when the stroma is old. The shape of the small stromata, which 

 are wholly or chiefly pycnidial, strongly resembles that of A. 

 ciihensis. 



Distribution. — Madagascar, in Herb. Berlin. Trinidad, in 

 Herb. Thaxter. 



Figures. — Plate 3, fig. .31, Hypocrdla, Trinidad specimen, x 6 ; 

 Plate 3, fig. 32, Aschersonia, Trinidad specimen, x 10 ; Plate 4, 

 fig. 19, section, Ma.dagascar specimen, X 4. 



Hypocrella Mollii Koorders, Bot.Untersuch.,p. 179 (1907). — 

 Stromata flattened -pulvinate, or scutate, usually irregularly 

 elevated or undulating, up to 7 mm. diameter and 1'5 mm. 

 thick, often confluent in large patches ; white, buff, or yellow ; 

 minutely tomentose, sometimes with a bj^ssoid margin ; 

 substance white, rather soft. Pycnidial orifices pale brown, 

 scattered, chiefly in the centre ; pycnidia elongated flask- 

 shaped, up to 300 [). long, 160 [>, diameter ; pycnospores fusoid, 

 ends tapering, 8-14 x 1-1 * 5 \).. Paraphyses linear, up to 60 ^ 

 long. Perithecia scattered, ostiola pale to dark brown, not 

 projecting. Perithecia flask-shaped, up to 0*5 mm. deep, 

 0-2 mm. diameter; asci 180 x 6-8 [).; part-spores cylindric, 

 ends rounded, 8-12 x 1 * 5-2 \x. Hypocrella cretacea v. Hohnel 

 Sitzungsber. d. Kais. Akad. d. Wissensch. Wien, CXVIII., 

 Abt. I., p. 311 (1909). Aschersonia sta,ge—Hypocrea varia- 

 bilis Currey (in part), Trans. Linn. Soc. (1876), p. 130 ; 

 Aschersonia confluens P. Henn., Monsunia, I., p. 37 (1899) ; 

 Aschersonia phthiurioides P. Henn., Hedwigia (1902), p. 

 145. 



This is a common species in the Eastern Tropics, usually on a 

 black Aleyrodes. It is distinguished by its regular flask-shaped 

 pycnidia, which resemble the perithecia in shape ; both may be 

 found in the same stroma. It occurs, often in large numbers, 

 on bamboos, but is not confined to monocotyledons. It may 

 be regretted that von Hohnel' s appropriate name cannot be 



