1885.] 



NORTH AMERICAN SPPXIES OF ASTERINA. 



135 



7. ASTERINA Pearsoni, E. & R. JouF. of Mycologv, I, p. 92. 

 ''Perithecia minute (100 ,"), flat, superficial, obscurely perforated 



above, of close cellular structure, with a scanty, subradiating- mycelium 

 around the margin ; asci oblong, obtuse, sessile, 40 x 15 /^-, without para- 

 physes ; sporidia biseriate. clavate, oblong, granular, becoming unisep- 

 tate and slightly constricted at the septa, 15 — 20 x 3i— 4i /■>-, acute below, 

 obtusi' above, hyaline." 



On blackberry canes, Vineland, J. 



8. ASTERINA Pinastri, Sacc. & Ellis. Michelia 2, p. 567. Ellis 

 A. F. No. 789. 



Perithecia black, globose-depressed, gregarious, astomous, 100—120/^. 

 Structure cellular; mycelium brown, branching, closely septate, very 

 , scant ; asci oblong, ends obtuse, sessile. 8-spored, 40—50 x 20—24 with- 

 out paraphyses ; sporidia 2—3 seriate, oval, uniseptate, hyaline at first, 

 then dusky, 18—20 x 6—7 /^-. 



On leaves of Pinus rigida, New Jersey. 



9. AsTERiNA TENELLA, Cke. Grev. 13, p. 67. 



"Epiphyllous, effused, thin, black ; perithecia minute (.03— .22 mm.) 

 applanate, mingled with brown, creeping, mycelium ; asci saccate, 4—8- 

 spored ; sporidia (eight-spored) 28—30 x 12—14 (four-spored) 40 x 22 U-, 

 light brown." 



On Fersea Carolinensis, Carolina. 



10. ASTERINA Xerophylli, Ellis. Am. Nat. 17, p. 319. 

 "Mycelium scanty ; perithecia entirely superficial, orbicular or sub- 

 elongated, slightly depressed, 167 in diameter ; asci obovate contracted 

 into a thick, stipe-like base, 35 x 15 ; sporidia hyaline, fusiform or clav- 

 ate-fusiform, faintly 3-septate, 18—20 x 3— 3i P-. 



On fading leaves of Xerophyllum asphodeloides, New Jersey. 

 B. Perithecia incomplete, flattened or scutellate. 



11. AsTERiNA DiscoiDEA, E. & M. Am. Nat. 18, p. 1148. Jour, of 

 Mycology, 1. p. 101. 



Perithecia hypophyllous, orbicular, slightly depressed in the center, 

 olivaceous, thin, 500—800 in diameter with an indistinct, reticulated 

 margin; asci obovate or globose, 30—40 x 30—35 m ; sporidia crowded, 

 clavate-oblong, uniseptate, 12—16 x 4—5 fJ-. Closely allied to Ascomy- 

 cetella. 



On living leaves of Quercus laurifolia, and of Olea Americana, Florida. 



12. ASTERINA iLicis, EUis. Am. Nat. 17, p. 319. Ellis N. A. F. No. 

 1357. 



Perithecia brown black, hypophyllous, scattered, adnate, at first hem- 

 ispherical then flattened and depressed, 100 — 120 /->- in diameter, opening 

 circular, structure a disc of brown, interlacing hyphse covering the 

 nucleus and forming a narrow margin beyond ; asci obovate, 8-spored 

 22—30 X 9—15 ; sporidia subhyaline, oblong, 1-septate, biseriate, 11 x 4 /j-. 



On living leaves of Ilex glabra, Newfield, N. J. 



