HYPODERMA. 35 



Leptostroma vulgare. Fries, Syst. Myc, ii. p. 599. 

 Leptothyrium vulgare, Sacc, Syll., iii. p. 633. 



Hypoderma hederae. De Xcit., Pir. 1st., p. 36 ; Eelim, 

 Kiypt.-Flora, Hyst, p. 33 ; Sacc, Syll., ii. n. 5783. 



Ascophores scattered on pale spots, innato-superficial, 

 elliptical, ahining black, lips at first acute and closed, then 

 gaping and exposing the yellowish then brown disc, 1-2 mm. 

 long ; asci clavate, rather narrowed at the apex, and attenu- 

 ated into a long stipitate base, 8-spored ; spores narrowly 

 elliptic-oblong, ends obtuse, straight or rarely very slightly 

 bent, for a long time continuous, then indistinctly 1-septate, 

 15—17 X -1^5 fi, hyaline, collected in a fascicle near the apex 

 of the ascus ; paraphyses slender, apex curled. 



Hi/sterium hederae. Mart., Flor. Erlang., p. 472 ; Cke., 

 Hdbk., p. 761. 



On dry ivy leaves. 



Specimen in Fuckel's Fung. Ehen., n. 756, examined. 



Hypoderma virgultomm. D. C, forma mbi D. C, 

 Flor. France, vi. p. 165 ; Eehm, Krypt.-Flora, Hyst., p. 33 ; 

 Sacc, Syll., n. 5792. 



Scattered, subinnate, aiTanged parallel to the long axis of 

 the branch on which they are growing, narrow and elon- 

 gated, 1-2 mm. long, shining black, slit narrow at first, then 

 gaping and exposing the grey disc ; asci clavate, apes nar- 

 rowed, attenuated below into a slender pedicel, 8-spored; 

 spores narrowly elliptic-fusiform, ends blunt, straight or very 

 slightly curved or sigmoid, at first continuous and 2-guttu- 

 late, then 1-septate, hyaline, 20-25 x 3— t /j., arranged in an 

 irregular manner in the widest part of the ascus ; paraphyses 

 slender, about 2 /i thick, apex more or less curved and 

 curled, hyaline. 



Hysterium virgultorum, Cke., Hdbk., p. 761. 



On dead bramble stems. 



According to Eehm the Spermogonia form is Leptostroma 

 virgultorum, Sacc, Mich., ii. p. 350, with continuous spores 

 measuring 4-5 x 1 /*• 



Hypoderma conigenum. Cke., Hdbk., p. 762 ; Eehm 

 Krypt.-Flora, Hyst., p. 35 ; Sacc, Syll., it. n. 5791. 



Crowded, erumpent, at first rounded then elongated 



