Notes on American Hepaticae 
By MARSHALL A. Howe 
I. CEPHALOZIA CONNIVENS 
CEPHALOZIA CONNIVENS (Dicks.) Lindb. Proc. Linn, Soc. 13: 
190. 1872. Kritisk Gransk. Mossorna Dill. Hist. Musc. 38. 
1883. Spruce, On Cephalozia, 46. 1882. Lindb. & Arn. Sv. 
Vet.-Akad. Handl. 23°: 20. 1889. Kaalaas, Nyt Mag. 165. 
1893. 
Jungermannia connivens Dicks. Fasc. Pl. Crypt. Brit. 4: 19. 
P!. 11.f- 75. 1801. 
Cephalozia multifiora Lindb. Act. Soc. Sci. Fenn. 10: 501. 
1875. Musc. Scand. 4. 18709. 
This species has been much confused with its near relative 
Cephalozia lunulaefolia Dumort. (C. media Lindb., C. multiflora 
Spruce) both in Europe and America, but is very distinct as was 
first well pointed out by Spruce (Ox Cephalozia, 39. 1882). The 
plant may be readily distinguished from C. /unulacfola by the large 
leaf-cells (35-90 », while only 25-50 in C. /unulacfolia), by the 
long-ciliate perianth-mouth, by the perianth-wall being unistratose 
throughout, and by being autoicous. The specimens distributed 
by Sullivant under the name of Jungermannia connivens in Musci 
Alleghanienses (no. 246) belong with C. /unulaefolia so far as we 
ve been able to see them, and the same is true of no. 57 of 
‘ustin’s Hepaticae Boreali-Americanae, issued as Cephalosia con- 
mers. In 1 896, Professor Underwood, in his review of ‘‘ The 
Genus Cephalozia in North America” (Bull. Torrey Club, 23: 
381~394), Placed Cephalozia connivens under “Species dubiae et 
Mquirendae,” remarking that it was likely to occur northward. In 
October, 1898, the writer of the present notes announced * ata 
Meeting of the Torrey Botanical Club the discovery of the genuine 
Phalozia connivens on the grounds of the New York Botanical 
Carden, Supposing this to be the first collection of the real C. con- 
mens in America, The species was soon found in several other 
Places in the neighborhood of New York, and this has led to an 
* 
