204 FETCH : 



LECANnCOLJB. 



Hypocrella, subgenus Fleischeria. 



Hypocrella palmae (Berk. & Curt.) Sacc, Syll. Fungorum, 

 II., p, 580 (1883). — ^Hemispherical, or two-thirds globose, up 

 to 6 mm. diameter, sometimes broadly convex, usually 

 strongly ridged obliquely or horizontally, moderately hard ; 

 red-brown, becoming black when old ; internally pallid or 

 yellow, purplish towards the exterior in old specimens ; 

 surface usually even, sometimes convoluted, or irregularly 

 lobed, rough with projecting ostiola, rarely almost smooth ; 

 perithecia usually arranged regularly round the periphery, 

 flask-shaped, '3-0 "4 mm. long, "2 mm. diameter ; asci 

 eight-spored, 160 X 8 \l, part-spores cylindric with rounded 

 ends, 5-10 X 1 '5-2 [x. Pycnidia globose, "2 mm. diameter; 

 pycnospores fusoid, 9-13 X 1-1 '5 ^. Hypocrea palmas B. & 

 C, Jour. Acad. Nat. Sci. Philadelphia, New Ser., II., p. 285 

 (1853) ; Hypocrella phyllogena Speg., Fung. Arg., Pug. IV., 

 No. 209 ; Hypocrella Spegazzinii Sacc, SyU. Fung., II,, p. 579, 

 ex Speg., Fung. Arg., Pug. IV. ; Hypocrella guaranitica Speg., 

 Fungi Guar., Pug. I., No. 256 ; Hypocrella filicina Rehm, 

 Hedwigia (1898), p. 200; Fleischeria paulensis v. Hohnel, 

 Ergeb. der Bot. Exped. der K. Akad. d. Wissensch. nach 

 Sud Brasihen, 1901, Bd. II., p. 21 (1907) ; Hypocrella globosa 

 Syd. non Rac, Ann. Myc, V., p. 359 (1907); Hypocrella 

 orbicularis Syd., in Theissen, Ann. Myc, IX., p. 67 (1911) ; 

 Hypocrella phyllophila Theiss., Aim. Myc, IX., p. 66 (1911) ; 

 Hypocrella ambiens Theiss., Ann. Myc, IX., p. 68 (1911) ; 

 Hypocrella Sydowii Sacc. and Trott., Syll, Fungorum, XXII., 

 p, 503 (1913). 



This species has the pecuharity of possessing in the majority(?) 

 of cases a well-defined ridge running horizontally or obliqt^ely 

 round the stroma at varying distances from the base, a featxire 

 which occiirs to some extent in Hypocrella olivacea also. This is 

 apparently caused by the elevation of the scale dm-ing the growth 

 of the fungus, its final position being indicated by the ridge. 

 Potash gives a yellow or greenish-yellow extract, but this some- 

 times fails with old specimens. 



