138 Sphaeriaceae, Allantosporie, Valsa. 



8-sporis, 48-60=; 8-9; sporidiis subdistichis, cylindraceis, curvulis, 

 12-1 Iw 3. — Spennogouia {Cylispora nivea (Pers.)) disco niveo, 

 poro plerumque unico, multilocularia, spermatiis fusoideo-elonga- 

 tis, curvulis, 6sl, tandein in cirrhos rubro-liyacinthinos expulsis. 

 Hab. in cortice ramorum Populi tremulaj, P. nigraj, 

 P. fastigiatae, P. canescentis in tota fere Europa et Amer. 

 boreali. — Var. ietraspora: ascis fusoideis, 40^6-7; sporidiis 

 quaternis distichis, 15-17 ^^^V^, allantoideis, hyalinis. Cum specie 

 frequens. 



106. Valsa Auerswaldii Nits. Pyr. Germ. 225. Sphceria leucosioma 534 

 Auct. p. p. — Stromate conico-truncato vel fere heraisphserico, 

 pustulato, plus minus protuberante, cortice interiore vix immerso, 

 peridermio adnato disco suborbiculari, albido, deinde fuscescente; 

 peritheciis in (juovis stromate 3-8, monostichis vel circinantibus, 

 substantiaj stromatis sordide lute^j vel pallida^ insculptis, sphae- 

 roideis, rainutis, collis longiusculis ostiolisque rotundatis vel trun- 

 catis, plerumque haud exsertis, sparsis, atris, minutis, tandem poro 

 latiusculo pertusis; ascis elongatis, 8- vel 4-sporis, 40-80:^8-12; 

 sporidiis conglobatis vel subdistichis, elongatis, valde curvatis vel 

 subrectis, 12-22 s 2,5-3, rarius -5. — Sperraogonia (Ci/tispora 

 personata Fr, p. p.) stroraatibus perithecigeris sirailia, sed paullo 

 minora, disco orbiculari, albido, poro vulgo unico, spurie plurilo- 

 cularia ; spermatiis elongatis, curvulis 6-8 5 2, tandem in cirrhos 

 rubro-hyacinthinos expulsis. 



Hab. in ramis Rhamni Frangul?e, rarius in Fago, Be- 

 tula, Malo et Salice caprea in Germania, Fennia, Italia bor. 

 — In forma tetraspora salicicola asci 28-36 s 8; sporidia 16-20 

 :;3-4. 



107. Valsa Massariana De Not. Sfer. ital. cent. I, p. 34, n. 37, t. 37, 535 

 Nits. Pyr. Germ. pag. 221. Sphceria leucostoma Auct. p. p. — 

 Stromate e basi late ovali in discum ellipticum, rarius subrotun- 

 dum attenuato, peridermio adnato per periderraii rimas, transver- 

 sim directas, erurapente; peritheciis in singulo stromate 8-LO v. 

 pluribus, spermogonio centrali circumpositis, densissime stipatis, 

 mutuaque pressione angulatis, in collum crassiusculura attenuatis; 

 ostiolis in diSco ex cinereo fuscescente marginalibus, incrassatis, 

 globosis, atris, poro pertusis; ascis oblongis, sessilibus, tetra- v. 

 octosporis 48-60 s 9-12; sporidiis conglobatis, cylindricis, curvulis, 

 hyalinis, 20-26 w 4. — Spermogonia cytisporoidea; spermatiis al- 

 lantoideis 6-7^1, breve stipitatis. 



