Hymenomycetae, PolyporacejB, Polystictus. 413 



19. Polystictus violaceus Wakefield, Kew Biill., lOlG, n. 3 p. 72. — Pi- 1537 

 leis iinbiicatis, sessilibus, 5-6 cni. latis, 5 cm. longis, subinde ad 



14 ctn., hiteraliter contiuentibus, tenuibus, siccitate rigidis, azonis, 

 leniter rugulosis, minute velutinis, violaceo-cervinis; contextu vio- 

 laceOj tenui; tubulis concoloribus, 2 mm. longis, rigidis; poris mi- 

 nutis, irregularibus, angulatis, dissepimentis tenuibus, violascenti- 

 bus, marginem versus pallide cervinis sporis non visis; hypbis 

 3,5-4 [X cr., pallide lilacino-fulvis. 



Hab. in silva JSTamutabubula ad truncos emortuos, Uganda, Africa. 

 An afflnis Polysticto ahietmo ? 



20. Polystictus substygius Bk. et Br. — Syll. Yl p. 195 — fm. minor i538 

 Bres., Basidiom. Philipp. I in Hedw. LI (1912) p. 315. — A typo dif- 

 fert statura circa dimidium min., pileo magis nitente et poris ali- 

 quantuhim minoribus, scil. 11-12 pro mm. 



Hab. ad truncos, Luzon, Luebau, Negros, Mts. Ouernos, ins. Plii- 

 lipp. (Elme^.). — Pileus densissime zonato-sulcatus, tomentosulus, 

 fulvo-badius, coriaceus, durus, contractus, 1-4 cm. latus, 1,5-2,5 lon. 

 1-1,5 mm. crassus; tubuli et pori fusciduli, sporae stramineae, 4-4,5 

 * 3,5 ; basidia 9-12 ^ 4 ; setulae fulvae 15-24 * 5-6 ; hypbae con- 

 textus bymenii 2-4 (x, pilei 2-4,5 \i cr. 



21. Polystictus fumigatUS Bresad., Ann. Mycol. X, 1912, p. 503. — Pi- 1539 

 leo coriaceo-membranaceo, spatbulato v. subreniformi glabro alu- 

 taceo-fumoso zonis crebris discoloribus, interdum sulcatis praedito, 



2-4 cm. lougo 2,5-3 cm. lato; stipite laterali glabro, alutaceo, basi 

 scutato-dilatata, 7-12 mm. longo 2-3 mm. cr.; tubulis pallidis, 1 mm. 

 circiter longis ; poris parvis, angulatis, ex albo stramineis, 8 pro 

 mm., substantia pallida, 1 mm. crassa ex hyphis crasse v. cras- 

 siuscule tunicatis 1,5-5, gen. 3-4 \i crassis, sporis byalinis cylin- 

 draceo-curvulis, 4^1,25-1,5; basidiis clavatis 10-12*3-3,5; hyphis 

 hymenii 2-3,5. 



Hah. ad ligna, Tjibodas Java (v. Hohnel). — Pol. mutahili proxi- 

 mus et valde similis sed sporis et structura diversus. 



22. Polystictus revolutUS Bresadola, Ann. Mycol. 18., 1920, p. 35. — 1540 

 E resupinato refiexo, centro affixo, interdum contiuente; pileis or- 

 bicularibus, 1-2 cm. latis vel in confluentibus late oblongis; bene 

 evolutis fere ex integro reflexis et subflabellatis, ligno tuberculo 

 stipitiformi laterali vel excentrico, 1-2 mm. longo crassoque co- 

 njunctis, coriaceo-fibrosis, sericeis, albis, demum maculis parvis, di- 

 stantibus, subochraceis, conspersis, substantia candida, tenui, vix 



1 mm. crassa ; tubulis concoloribus, 3-4 mm. longis ; poris angu- 



