Hymenomycetese, Hydneae, Hydnum. ?11 



12. Hydnum tropicale Pat. Bull. Soc. Myc. 1888, p. 38. — Imbrica- Sic^ 

 tum, pendulum, postice adfixum, orbiculare, conico-stipitiforme, ru- 

 goso-scabrum, azonum, albo-flavidum, margine integro vel undulato 

 inciso ; hymenio pallido, rufido, oentro concavo, prope raarginem 

 sterili; aculeis pendulis, numerosis, brevibus, acutis. 



Hab. ad ramos emortuos, Atiires Venezuelae. — Fungus 8-15 

 mm. diam., e 15-20 pileis efformatus; aculei V^ mra. circ. long. 



3. Dimidiata. 



13. Hydnum Puiggarli Speg. F. Puigg. n. 138. -- Pileis coriaceis du- 847 

 ris, azonis, effuso-reflexis, vix pulverulento-pruinulosis, antice pal- 

 lescentibus, postice subrufescentibus, contextu ligneo-fuscescente ; 

 aculeis ligneo-pallescentibus, confertis, brevibus, subsequalibus, acu- 

 tis, saepius integris. 



Hab. ad truncos languidos in silvis prope Apiahy Brasilise. — 

 Pileus 30-40 mm. lat., 30 mm. alt. ; contextus 2,5-3 mm, cr. ; 

 zona marginali sterilis 1-5 mm. lat. ; aculei 1-2 mm. lohg., 0,5 

 mm. crass. Species H. pudorino Fr. affinis, pileo fere glabrato 

 sublignoso-coriaceo satis tamen recedens. 



14. Hydnum aurfcuioides Wettst. Vorarb. Steierm. I, p. 33. — Pileo m 

 dimidiato-subsessili, tenui, ambitu ellipsoideo v. auriculiformi, basira 

 versus in stipitis modum rugoso-contracto, plano vel convexo, mol- 

 liter coriaceo, supra asqualiter breviter velutino, ochraceo vel pal- 

 lide fusco; poris magnis, tenuiter acuminatis, subsequilongis, fuscis, 

 marginem versus minoribus; sporis hyalinis, ovatis vel subglobo- 

 sis glabris, 3-5 fA. long. 



Hab. ad truncos putres prope Frohnleiten Stiriae. — H. hirto 

 maxime affine. 



15. Hydnum flavum Berk. — Sacc. Syll. VI, pag. 456, Speg. Puigg. S49 

 n. 138. Cl. Spegazzini loc. cit. ita observat et distinguit: 



Species pulcherrima a genere Hydno facillim6 separanda ac me- 

 lius forte Hymenoohceii adscribenda, sat variabilis; formse nobi- 

 liores haa 3 sequentes prope Apiahy Brasiliae occurrunt. — a) Pi- 

 leis coriaceo-membranaceis, in sicco rigidulis, dimidiato-flabellatis, 

 5-20 mm. diara., subcucullato-convexulis, po.stice cuneatis, non raar- 

 ginatis levissimis; contextu sordide albo-pallescente, compacto, te- 

 nui 0,5 mra. crass. ; hjmenio e pallescente lutescente aculeis cy- 

 lindraceo-conoideis, 150-200:^50-60, laxiuscuiis, pallide subferru- 

 gineis apice sphacelatis atque pallidioribus vestito. — b) Pileis te- 

 nuibus coriaceis, rigidis in sicco, ex orbiculari reniforraibus sub- 



