HYPOCRELLA AND ASCHERSONIA. 235 



the Hypocrella stage are immature, the only recorded exception 

 being Hypocrella Oretvise, of which Ivoorders states that the 

 spores split up into innumerable part -spores, without giving 

 their measurements. But from Koorders' figures and his illus- 

 tration of the formation of the part-spores, it is probable that 

 these were merely pycnospores. The typical discoid form of 

 this species is easily recognized, but it frequently occurs in very 

 small pulvinate forms. It often occurs in company with Hypo- 

 crella Mollii. 



Berkeley and Broome's type specimen from Ceylon is in Herb. 

 Kew and Herb. Peradeniya ; it consists of specimens on Zingiber 

 and on a dicotyledonous leaf; the latter specunens are on a black 

 Aleyrodes ; the former are perithecial, but the latter contain 

 pycnidial forms also. The Ceylon specimens on a dicotyledonous 

 leaf were divided between Herb. Berkeley and Herb. Cooke ; 

 both parts are now in Herb. Kew, but, probably owing to 

 different methods of preservation, Cooke's half is orange-red, 

 while Berkeley's is yellow. Hypocrella Zingiberis Massee, type 

 in Herb. Kew from Perak, is now pale yellow with dark ostiola ; 

 some specimens contain both perithecia and pycnidia, but both 

 immature. Hypocrella Zinimermanniana P. Henn., type in Herb. 

 Berlin, from Java, on some Zingiberaceae, agrees exactly with the 

 type of discoidea, except in colour, which is now yellow, but in 

 this they match Berkeley's specimens noted above ; they have 

 evidently been treated with alcohol which has extracted the 

 colour and stained the paper in which they are kept ; there are 

 no " substipitate " specunens as described by Hennings. 

 Hypocrella Orewiee Koorders, type in Herb. Berlin from Java 

 on Oreivia microcos, is the orange-red pulvinate form ; similar 

 specimens also occur in Koorders' type specimen of Hypocrella 

 Mollii, on Premna, from Java, in Herb. Berlin. 



Aschersonia 'samoensis P. Henn., type in Herb. Berlin, on leaves 

 of some Rubiacese, Upolu (Reinecke 61), contains typical discoid 

 forms, surface plane, or depressed in the centre, or irregularly 

 undulating, 1-2 • 6 mm. diameter and up to 0*4 mm. thick; 

 some have a narrow membranous hypothallus, up to • 26 mm. 

 wide, in others it is wanting. Aschersonia cinnabarina P. Henn., 

 type in Herb. Berlin, on leaves of Qlochidion sp., from the 

 Philippines, contains minute pulvinate or discoid forms, 1-1*5 

 mm. diamster; it is on a white Aleyrodes. Aschersonia Napoleonse 

 Pat. & Hariot, type in Herb. Paris, on leaves of Napoleona, 

 Dahomey, is typical discoidea ; some of the specimens are Hypo- 

 crella. From Herb. Pusa, I have examined the Aschersonia stage 

 on teak, Burma ; on teak, Rangoon {-with Hypocrella Mollii) ; on 

 Aleyrodes on Millettia (?), Travancore ; and on Aleyrodes on 

 Spondias mangifera, Chittagong. 



Parkin's Aschersonia A. 6, p. 38, on Aleyrodes on DiospyroS 

 toposia, Ceylon, is the typical Aschersonia stage. Other Ceylon 

 gatherings include specimens on Aleyrodes sp. on Memecylon 

 on Aleyrodes sp. on Zingiber, &c. 



