140 "DJs^^omyoetfie, Helvellaceep, HyalosporHp, Helvella. 



atomosanoibus in areolas partito; ascis octosporis: sporidiis ovoi- 

 deiB '^-30 V 14-, levitoy rugoso-tuberoulatis, imcleo 11 y., d. v. 

 14 5^11, valde refringenti pnsditis, hyalinis; paraphysibus tenui- 

 )dxis eursiim inorassatis, septulatis. 



Ilab. in silvis prffisertim inter folia faginea, Putnam county 

 Tnd. Amer. bor. (Doct. W. V. Brown). — Optime vesca. Singu- 

 him exemplar subjnde 175-190 gr. ponderis. 



HEIiV&LLA Linn. — Syli. VHI, p. 17, XI, p. 391. 



L HeJvella alpestris Boud. Buli. Soc. Myc. 1895, p. 28, tab. II, 2779 

 iig. 2. — Ascomate non deflexo, cupulato, stipitato, Qxtus sub 

 lento breviter vehitino, non sciuamoso-hirto, atro, margine subcre- 

 iiulato albicante 5 stipite concolori, similiter puberulo, ad basim 

 subincrassato et sulcato, non pallescente, carne alba; hymenio atro 

 receptaouio vix obscuroj paraphysibus fuhgineis, ad apicem in- 

 crassatis, ciava 5-6 p. crassa, ad basim sjepius septat'-. intus gra- 

 nulosis; agcis octosporis, cylindricis, ad basim attenuatis et flexuo- 

 sris, 300 ^:* 16-20, hyahnis ; sporidiis ellipticis, apicibus obtusis, hya- 

 linis, levibus intus more generis guttuJa oieosa crassa et rarius 

 granulis parcis praecipue in junioribus prai^ditis, 22-25 *= 14-15. 



Hab. ad terram in pratis alpinis in Helvetia. — 1 y^ cm. alta, 

 tota nigra. 



2. Helveila grisea Clem. Bot. Surv. of Nebraska IV Liucoln 1896, 278O 

 p. 8. — i^scomate adpresso, persistenter bilobo v. subreniformi 

 vix inliato, subtus venuhs prominuhs numerosis anastomosantibus 

 percurso reticulatove, pallido, hymenio levi persistente pallide gri- 

 seo-brunneo vestito; stipite conooiori v. vix palhdiore, initio lon- 

 gioudinaliter sulcato dein laounoso-sulcato; ascis cyhndraceis, 20Q- 

 250 V 15, octosporis, paraphjj-sibus filiformibus, septatis, hyahnis, 



4 u. oraysis obvallatis; sporidiis monostichis iate ehipticis, intus 

 guttula oleosa crassa prneditis, 18^10. 



Ilab. ad terram, Nebraska Amer. bor. — Pileus 1-2 cm. altus, 

 1-2'/., cm. latus; stipes 1 '/ -3 cm. longus, 4-5 mm. crassus. 



3. Heivella sulcata Afz.-Syll. VIII, p. 20. — Var. minor Clem. 2781 

 Bot. Survey of Nebraska IV Lincohi 1896, p. 8. — Ascomato 

 2-3 nim., raro 8 mm. lato, 2-5 mm. alto; stipite 2-3 mm., raro 



10 mm. alto, 1 '/,-3 '/., mm. lato; sporidiis 15 v 10. 

 Ilah. in terra in Nebraska Amer. bor. 



4. HeiveSla albella Quci. XX Suppl. 1895, p. 6, t. VI, % 16 (As- 2782 

 soc. franc. avanc. So.). — Stipite cylindrico, medulla byssoidea 



