Friesia XI, 5

- 277 -
Fig. 4. X enosperma lu di bu n du m (R OGERS & L IBERTA) OBERW. a . Hypha e
and basidia ; b. Spores . - X 1000. CoU. 5097.
Xenosperma ludlbundum (ROGERS & LIBERTA) OBERW.,
Sydowia 19 : 45, 1965.
S y n . Xenasma ludibundum ROGERS & L IBERTA, Mycologia 52: 902, 1960.
F ig . 4.
F r uit-body effused, very t hin, ceraceous-pruinose, greyish. Hyphae
few, t hin-walled, cylindrical, 1,5-3,5 p broad, nodose-septate. Pleurobasidia
short-cylindrical, 8-10 ,5 X 4,5-7 p with 2 sterigmata up to
9 p long. Spores hyaline, pyramidical with 3-4 tubercles and a blunt
apiculus, 5,5-8 X 5-7 p, non-amyloid. - New to Denmark.
CoUections : On wood. Hareskoven, Oet. 25, 1975; KH 5097
On wood. Korsør Skov, Nov. 10, 1977; KH 5573
On wood. Korsør Skov, Nov. 8, 1977
(eoU. with 4 sterigmata) ; KH 5574
Xenasma pulverulentum (LI'r.SCH.) DONK,
Fungus 27: 25, 1957.
Syn. Co r t i ci u m pulv erulentum LI T.SCH., osterr. Bot. Z. 88: 112 , 1939.
F ig. 5
Fruit-body resupinate, very thin, waxy-pruinose, greyish. Hyphae
indistinct, Jlyaline, thin-walled, 1,5-2 p broad. Basidia cylindrical,
8 X 4,5 p with 4 sterigrnata. Cystidia almost cylindrical, capitate, thinwalled,
about 15-20X3-4 p. Spores hyaline, ellipsoid, (6)-8-10-(13) X
(4,5)-5-(6) p, wall longitudinally striped, not amyloid. - New to
Denmark.