HEPATICS FROM WEST SUTHERLAND SHIRE 
233 
la? Wo - 3 > garcls these species, was given in this Journal for 1919, 
pp. 42—41, by the late Mr. W. H. Pearson. 
*11. tenuis Evans. Among rocks in the wood by Loch Assynt, a 
single largish tuft only. II. tenuis is proposed as a new species bv 
Dr. E vans in the paper above cited, and it is distinguished from 
II. llutchinsice by its smaller size, straighter leaves with rather less 
thickened cells, and the not infrequent presence of rounded or sharp 
teeth on the basal margins of the leaves. I submitted the Scotch 
plant to Dr. Evans, who replied: “It seems to me that you are 
correct in referring your Herberta to II. tenuis , and I am glad to 
know that the latter species occurs in the British Isles as well as in 
North America.” H. tenuis is no doubt very close to H. llutchinsice, 
and if one looked at the Scotch specimen alone, it might perhaps be 
regarded as a depauperate form or variety of that species. Dr. Evans 
attaches considerable importance to the marginal teeth which are 
generally obtuse in the Scotch plant, and to the remarkable fact that 
in North America the two plants appear to have entirely different 
ranges, H. tenuis being restricted to the hills and mountains of 
Eastern North America and II. llutchinsice to the Pacific coast. 
The conditions in the wood b}^ Loch Assynt, which was moist and shel¬ 
tered, were not such as generally produce depauperate forms, and most 
of the Hepatics growing in it were rather luxuriant. 
Ma-stigophora Woodsii (Hook.) Nees. Ben Ehurain and Meallan 
Liath Mor, fairly common but small in the latter locality. 
Ptilidium ciliare L. Hampe. Glen Dubh.— *P. pulcherrimum 
(Web.) Hampe. Pine trunk near Loch Inver, a single tuft only. 
DiplophyHum albicans (L.) Dum. Fairly common, c.per.—- 
*D. obtusifolium (Hook.) Dum. Lower part of the Valley Alt nan 
Uainh, rare, c.per. 
Scapania subalpina (Nees) Dum. Glen Dubh, a pale lax form.— 
*S. Bartlingii (Hampe) Nees. Glen Dubh, on moist limestone 
rock by the Traligill with S. cecpuiloba and other Hepatics.— S. cequi- 
loba (Schwaegr.) Dum. Moist limestone rocks, Glen Dubh.— 
8. gracilis (Lindb.) Kaal. Widely distributed.— 8. aspera Bernet. 
Limestone rocks by the Traligill.—*$. nimbosa Tayl. and *8. orni- 
thopodioides (With.) Pears. Ben Fliurain and Meallan Liath Mor. 
— S. dentata Dum. Glas Ben.—$. undulata (L.). Dum. Glen 
Dubh.— 8. uliginosa (Swartz) Dum. Near the stream, Alt a Chalda 
Mor.— 8. irrigua (Nees) Dum. Frequent in the district.— 8. curta 
(Mart.) Dum. var. geniculata (C. Massal.) K. Mull. On decaying 
heather, upper part of Glen Dubh, very sparingly, with a few 
perianths.— 8. umbrosa (Selirad.) Dum. Wood by Loch Assynt. 
j Radula complanata (L.) Dum. Trees near Loch Inver, c.per.— 
*P. Lindbergii Gottsche. Limestone rocks, Creag nan Uamli.— 
*11. aquilegia Tayl. Bocks in the wood by Loch Assynt. 
Pleurozia purpurea (Lightf.) Lindb. Marshy ground near 
Inchnadamph ; a dark, occasionally almost black, form. 
*Madotheca Icevigata (Schrad.) Dum. Below the limestone cliffs 
at Inchnadamph.— *31. platyphylla (L.) Dum. Creag nan Uamh. 
*Colurolejeunea calgptrifolia (Hook.) Sehiffn. Moist shaded 
rocks in the wood by Loch Assynt, c.per. 
