— 54 — 
Weisia longiseta Lesq. & James. 77 
“ viridula (L.) Hedw. 75 
“ var. nitida R. & C. 74 
Sanford, Florida. 
NOTES ON NORTH AMERICAN HEPATICAE— VIII 1 
Alexander W. Evans 
(with plate ii) 
In a recent paper on New England Hepaticae 2 the writer discussed three 
species of Nardia (N. hyalina, N. obovata and N. obscura ) and called attention 
to the discovery of N. subelliptica in Nova Scotia, this species being an addition 
to the American flora. In the present paper N. subelliptica and two other species 
of Nardia , N . f ossombr onioides and N. rubra, are considered; N . fossombronioides 
is an eastern species, which is perhaps to be expected in New England, while 
N. rubra is confined to the Pacific Coast region. The paper reports further two 
additions to the flora of the United States, Petalophyllum Ralfsii (which is new 
also to America) and Leptocolea cardiocarpa. The five remaining species are 
introduced for various reasons but mainly to record extensions of range or to 
help clear up difficulties in nomenclature. 
Since the appearance of the seventh number of this series 3 an important 
article has been published by Arnell on the mosses of the Vega Expedition. 4 
Most of the species considered came from Nova Zembla or Siberia but a few 
had been collected at Port Clarence or on St. Lawrence Island, Alaska. These 
include the following additions to the hepatic flora of the territory: Cephalozia 
pleniceps, Cephaloziella striatula, Lophozia barbata, L. Binsteadii, L. Kaurini, 
Pleuroclada albescens, and Scapania subalpina. In the writer’s report on the 
Hepaticae of Alaska, 5 published in 1915, 105 species are recorded. Adding to 
these Harpanthus Flotowianus (which was omitted by mistake), Asterella Linden- 
bergiana (which has recently been reported in another paper) , 6 and the seven 
species listed by Arnell, the total number of species now known from Alaska is 
increased to 114. 
1. Corsinia coriandrina (Spreng.) Lindb. Hepat. Utveckl. 30. 1877. 
Riccia r eticulata Gmel.; Linnaeus, Syst. Nat. ed. 13, 3 : 1355. 1796 (not R. reticu- 
lata Sw., 1788). R. coriandrina Spreng. Anleit. 3 : 320. 1804. Corsinia march- 
antioides Raddi, Opusc. Sci. Bologna 2 : 354. 1818. Tessellina coriandrina Du- 
mort. Comm. Bot. 78. 1822. Corsinia reticulata Dumort. Hep. Eur. 166. 1874. 
1 Contribution from the Osborn Botanical Laboratory. 
2 Rhodora 21 . 1919.. In press. 
3 Bryologist 20 : 17-28. pi. 2. 1917. 
4 Arkiv for Botanik 15 5 : i-m. 1917. 
6 Bull. Torrey Club 41 : 577-626. pi. 21. 1915. 
6 Contr. U. S. Nat. Herb. 20 : 284. 1919- In press. 
