HYPOCBJKLLA AJSD ASOHERSONIA. 209 



specimens of the latter have been found so tubereulate us thuL 

 figui-ed by Moller for the former species. 



Though Hypocrella epiphylla is rare, its Aschersonia stage, A. 

 cubensis, appears to be common in the Western tropics. The 

 type specimen in Herb. Kew, on Pteris, Cuba, contains sm.all 

 stromata, generally with one pycnidium, but in some cases two ; 

 Herb. Paris contains part of the same gathering (Curtis 427). 

 Aschersonia amazonica P. Henn., type in Herb. Berlin, on leaves 

 and stems of Bignoniacese, Iquitos (Ule 3208), contains small speci- 

 mens, 1 • 5 mm. diameter, with one pycnidium, and others 4 mm. 

 diameter with up to a dozen ; it is on a Lecanium. Under the 

 same name, in Herb. Berlin, is another gathering oixPsychoiria,'R\o 

 Negro, Manaos ; most of these specimens have a single pycnidium ; 

 it is on Lecanium hemisphericum. Aschersonia consociata P. 

 Henn., type in Herb. Berlin, on Davilla, Brazil (Ule 2889), con- 

 tains a single specimen of A. cubensis with numerous pycnidia. 

 C. F. Baker, 222 b, on Cordia umhraculifera. Para, Brazil, sub 

 Aschersonia sclerotioides in Herb. Berlin, is A. cubensis. 



Specimens of this species have been sent me by H. S. Fawcett, 

 on Lecanium (? hesperidum) on Per sea carolinensis. Florida ; and 

 by F. W. South, on Lecanium {? mangiferse) on Guava, mixed with 

 A. turbinata, Trinidad. From Prof. Thaxter, I have received 

 specimens from Grenada, Florida, and Trinidad. 



Small svibcylindrical specimens of the Aschersonia may be con- 

 fiised with small specimens of Aschersonia turbinata, but they 

 may be distinguished by the rounded upper edge of the stroma 

 and the shape of the pycnospores. Large specimens resemble 

 Hypocrella cavernosa in structure, but differ in the smaller spores 

 with more tapering points, and the sunken pycnidial orifices. 

 Potash stains a section purple here and there in isolated patches. 



Distribution. — St. Vincent (H. epiphylla), in Herb. British 

 Musemn. Florida, in Herb. Peradeniya, and Herb. Thaxter. 

 Grenada, in Herb. Thaxter. Trinidad, in Herb. Thaxter. Cuba 

 {Aschersonia cubensis), in.HeTh.K.ew and Herb. Paris. Brazil, in 

 Herb. Berlin {A. consociata and sub A. sclerotioides). Peru, in 

 Herb. Berlin {A. amazonica). 



Figures. — Plate 3, fig. 24, Aschersonia cubensis, Florida 

 specimen, x 6 ; Plate 3, fig. 28, specimen ex type, x 8 ; Plate 4, 

 fig. 9, section of Hypocrella, x 6 ; Plate 4, fig. 31, section, Ascher- 

 sonia cubensis, simple form, X 6 ; Plate 4, fig. 32, section, Ascher- 

 sonia cubensis, compound form, x 3. 



Hypocrella Reineckiana P. Henn., Engler's Bot. Jahrbuch, 

 XXIII., p. 286 (1896). — Hemispherical, or two-thirds globose, 

 or conico-pulvinate, up to 4 mm. diameter ; moderately hard ; 

 at first pale yellow, or buff, becoming fuscous or slate -coloured 

 with a glaucous bloom, finally black ; internally pale yellow 

 or whitish ; usually smooth, glabrous, even, sometimes fur- 

 rowed or convoluted. Pycnidia scattered, orifices yello\^'- 

 brown or red-brown, usually sunk, flask-shaped or lobed, or 



