12 ARKIV FÖR BOTANIK. BAND 2. N:0 5. 



{Lindman). In Meliola mattogrossense parasitans. — D. melio- 

 licolum Speg. sec. descriptionem ascis et sporidiis divergens. 



Microtliyrium. 



M. Stjracis Starb. nov. sp. 



Perithecia sparsa vel sparsim gregaria, interdum nonnulla 

 conlluentia, macnias non efformantia, scntellata, orbicnlaria, 

 centro pertusa, margine in8equal.e vel irregnlariter lobulato, 

 nigra, trans lucem fnliginea, textura reticnlatim prismatica, 

 100 — 200 i-i diam. Asci late clavati, sursum fere truncati, 

 31 — 38 X 5,5 — 7,5 ;t/. Sporidia octona, disticha, clavnlata, 

 primo giittulata, deinde supra medium septata, locnlo snpe- 

 riore rhombiforme, acutiusculo, inferiore cylindrico-clavulato, 

 obtusiusculo, hyalina, 11 — 12 x 4,5 — 5 f.i. Parapbyses nuUee. 

 — Hab.: Brasil., Rio Grande do Sul, Piratiny in folia Styra- 

 cis. 18/12 1892, N:o 109 B. 



Asteriiia. 



A. paraphysata Starb, nov. sp. 



Mycelium latiuscnle repens, periferice laxissiraum, reti- 

 cnlatim anastomosans, centrum versus densissime crustaceum, 

 nigerrimum, membranaceo-pulveraceum, maculas vage deter- 

 minatas, irregulariter polygonas formans, bypbis 5 — 12 f.i 

 crassis compositum, bypbopodiis oppositis, varia forma, inter- 

 dum cellula basale brevissime vel tuberculatim ramulosa, 

 superiore obtusa, continua vel biseptata ornatum. Perithecia 

 sparsa vel confertula, plicatim rugosa vel setis brevibus ob- 

 sessa, prinio scutellata, deinde lenticularia, umbilicatim debis- 

 centia, pulveraceo-carbonacea, 100 — 150 jtt diam. Asci pyri- 

 formes vel interdum sphccrice ovoidei, breviter pedicellati, 

 vel sessiles, 65 — 75 x 35 — 40 ^t/. Sporidia octona, conglobata, 

 uniseptata, constrictula, loculis globulosis vel interdum 

 paullum rbomboideis, primo hyalina, deinde fuliginea, mem- 

 brana manifestim sed minutissime granulata, 29 — 32 x 14— 

 16,5 f.1. Paraphyses numerosae, densissime septatse et ramosie, 

 ramulis extremis varie curvatis, gelatinosse, olivascentes, ascos 

 obvallantes, filiformes. Jodo asci undique ca3rulescentes. — 

 Hab.: Brasil., Rio (xrande do Sul, Piratiny in foliis Styracis, 



