L. ROMELL, HYMENOMYCETES OF LAPPLAND. 27 
Three of these are hitherto undescribed as far as I know. — M. 
fusisporus was not collected by me, but is found at Umea and 
might possibly occur also in Lappland. 
M. borealis n. sp. — Fig. 15. 
Resupinatus, mollis, laxe adhaerens, longissime expansus 
(pedalis et ultra) primitus albus, interdum cum tinctura levis- 
sima rosea vel incarnata, dein cremeus vel ochroleucus, margine 
radioso albo. Hymenium primitus tenerrimum, laeve, glabrum, 
corticioideum, dein merulioideo-rugosum, demum rimosum, 
subiculo albo, molli, tomentoso in rimis visibili. Hyphae 
molles, fibulato-septatae, 3—5 t. latae. Sporae lineari-oblongae, 
oblique apiculatae, 6—87«2 p. 
On rotten trunks of Betula at Palnoviken and Kalixfors 
and on a rotten trunk of Pinus silv. at Nattavara. — Besides in 
Lappland I collected this species at Lakaträsk and Jörn (on 
Pinus silv.) and at Selsjón (on Betula). It seems thus to be 
widely distributed in North Sweden. As far as I know it is 
not found in other parts of the country, unless a collection from 
Floda in Västergötland (on bark of Abies) may be considered 
as a var. isabellina of it. This collection is referred to Mer. 
porinoides in Ros. Fries’ Addit. p. 35, but can probably not 
be accepted under that name, as it does not agree with authen- 
tic specimens of M. porinoides FR. 
Among the mostly unpublished colored drawings of fungi 
made under FRIES” inspection and deposited in The Royal Aca- 
demie of Science at Stockholm, there is one showing a »Merulius 
fugax» from Torne Lappmark, collected (probably by C. P. 
LugsTADIUS) on the bark of Populus tremula. This looks rather 
like my M. borealis, but whether identical, I cannot ascertain, 
as no specimens of it are found in FRIES” herbarium. At all 
events, it can not be identical with the authentic specimen of 
Mer. fugax, which has proved to be young M. molluscus. 
M. fusisporus n. sp. 
Resupinatus, albidus, subiculo tenui, laxo, molli, sericeo- 
filamentoso. Hymenium membranaceum, reticulato-plicatum. 
Hyphae subiculi 17/,—3 y latae, partim liberae, partim in fila 
8—60 jw lata coalitae. Basidia 27 X6—7 vw. Sporae subfusoi- 
deae, 7 !/, —12 x 3—4 !/, v.. 
