237 
Diagnosen zu Thümen’s „Mycotheca universalis. 
Von F. v. Thümen. 
(Conf. Flora 1890 p. 312 ff.) 
Inhalt der Centurien XVI—XVIU. 
Lenzites Reickardii Schulzer nov. spec. — Myec. m, no. 1501, 
L. biennis, subimbricatus; pileo semiorbieulari, adnato, 
15—45 cent. lato, basi subfuseo, versus marginem paullalim och- 
raceo vel subalbo, veiustate Loto cinereo et fugace tomentosulo, 
primo iniquo subzonatoque, subgibberuloso; caro suberoso, 
ochro-albo; lamellis alutaceis, primo albo-pruinosis, basi inter- 
dum maeandriformibus, versus marginem acutalis, radiatis, ali« 
quando furcaüis, margine iniegro. 
Siavonia: Vincovce in truncis emortuis Populi nigrae Lin. 
Vere 1879. leg. Schulzer de Müggenburg. 
Polyporus cupreo-nitens Kalchbr. nov, spec. — Myc. ım. no. 1702. 
:Mesopus. Hornotinus. Pileus papyraceus, late infundibuli- 
formis, margine reflexo, polyzonus, glaberrimus, eupreus; stipes 
centralis, tenuis, utrinque dilatatus, laccatus, albido-flavus; pori 
decurrentes, minuti, breves, rotundi, albido-carnei. — Species 
elegantissima! 
Australia: Melbourne — Victoria — ad arborum truncos. 
1878. leg. Fard. Baro de Mueller. 
Alhelia scirpina Thüm. nov. spec. Hydaum scirpinum Lib. in 
sched. — Mye. un. no. 1505, 
A. sublongitudinaliter effuss, membranaces, tenuis, primo 
plus minusve orbicularis, demum irregularis, eandida, postremo 
luteola, vix byssina, glabra, ambitu aequali. 
Belgium: Malmedy ia locis inundalis ad folia exsiccaia 
prostrataque Scirpi sylvalici Lin. Aest. leg. M. A. Libert. 
Exobasidium Ledi Kerst, nov. spec. — Myc, um. no. 1506, 
Receptaculum effusum, parenchymali folii inatum, in pagina 
superiore maculam flavescenti-pallidam efficiens, in inferiori 
hymenium filavescens, albopulverulentum expliesus, orbiculare 
vel oblongatum, sparsum; sporae fuscoideo-elongatae, 4-6 mm. 
long., eirciter 1 mm, erass. 
Fennia: Mustiala in folüs vivis Led; palustris Lin. Julio 1878. 
Raro, . leg. Dr. P. A. Karsten. 
Tremella Genistae Lib, nov. spec, — Mye. un. no. 160. 
T, erumpens, aggregals, minor, rotunda, tenax, viridis, sie- 
eitate nigra; sporas non Inveni, 
