LAQUEAEIA— SCHIZOXYLON. 60 



by Tulasne, Carp., iii. p. 148 ; Sacc, Syll., viii. p. 697. (Not 

 of Leighton, Fungiis-Flora, p. 390). 



Cyclostoma, Crouan, Fl. Finist., p. 30. 



Schmitzomia, Phil., Brit. Disc, p. 379. 



Distinguished from other genera having very long, 

 filiform, mnlti- septate spores hy the ppores readily breaking 

 up into numerous "joints" at the septa, each "joint" being 

 a cell of the compound or many-celled spore; and by the 

 spherical ascophore having a small circular disc. 



Schizoxylon Berkeleyanum. Fuctel, Symb. Myc, 

 p. 251 ; Sacc, Syll., n. 2863. (figs. 24-27, p. 22.) 



Scattered or gregarious, ascophore • 5-1 mm. high and 

 broad, erumpent, then subsuperficial. sessile on a broad base, 

 orbicular at first then expanding and exposing the blackish- 

 olive disc, which is slightly pulverulent at first, margin 

 scarcely projecting, quite entire ; externally pale yellowish- 

 green, then greyish or pallid, pulverulent; asci cylindrical, 

 narrowed at the base ; spores 8, filiform, very slender, 

 almost as long as the ascus, 140-150 x l'5-2'5 /x, septate, 

 breaking up into cells at the septa, 6-10 x 1 " 5-2 fj., hyaline ; 

 paraphyses filiform, 1 • 5-2 /x, thick, apex branched, olive- 

 brown, longer than the asci. 



Stictis Berkeleyana, Dr. & Lev., Fl. Alg., t. 89, f. 8. 



Schmitzomia Berkeleyana, Phil., Brit. Disc, p. 379. 



On dead stems of Artemisia vulgaris. On the continent 

 and in Algeria this species occurs also on stems and dead 

 branches of Epilobium, Oenothera, Genista, Lappa, Galium, 

 Fulicaria, Lonicera, Sosa, Buhus, Populus, and Vitis. 



Specimen sent by Leveille to Berkeley examined. 



Schizoxylon sepiniolum. Pers., Ann. Wett., i. 1810, 

 p. 11, t. 10, f. 9 ; Sacc, Syll., n. 2877. 



Ascophore sessile, about f mm. across, subglobose at first, 

 closed, and wart-Uke, then becoming patellate, indistinctly 

 crenulate at the margin, disc plane, blackish, at first with a 

 grey bloom ; blackish-red inside ; asci narrowly clavate, 

 attenuated into a slender stipitate base; spores 8, sub- 

 hyaline, filiform, very slender, multi-septate, nearly as long 

 as the ascus, breaking up into joints at the septa, each joint 

 measuring about 4 X 1 * 5-2 jn ; paraphyses filiform, repeatedly 

 branched in a furcate manner. 



