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. Muse. 38. 



1883. Spruce, On Cephalozia, 46. 1882. Lindb. & Arn. Sv. 



Vet.-Akad. Handl. 23': 20. 1889. Kaalaas, Nyt Mag. 165. 



1893- 



Jmigennannia coniiivcns Dicks. Fasc. PI. Crypt. Brit. 4: 19. 



//. //./. /J". 1 80 1. 



Ceplialozin nmltiflora Lindb. Act. Soc. Sci. Fenn. 10 : 501. 

 1875. Muse. Scand. 4. 1879. 



This species has been much confused with its near relative 

 Cephalozia lunulaefolia Dumort. {^C. media Lindb., C. vmltiflora 

 Spruce) both in Europe and America, but is very distinct as was 

 first well pointed out by Spruce {On Cephalozia, 39. 1882). The 

 plant may be readily distinguished from C hinulaefolia by the large 

 leaf-cells (3 5-90 y., while only 25-50 /i in C. hinulaefolia), 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 oi Jungcrmaiinia connivens in Musci 

 Alleghanienses (no. 246) belong with C. liimilaefolia so far as we 

 have been able to see them, and the same is true of no. 57 of 

 Austin's Hepaticae Boreali-Americanae, issued as Cephalozia con- 

 nivens. In 1896, 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 

 inquirendae," remarking that it was likely to occur northward. In 

 October, 1898, the writer of the present notes announced* at a 

 meeting of the Torrey Botanical Club the discovery of the genuine 

 Cephalozia connivens on the grounds of the New York Botanical 

 Garden, supposing this to be the first collection of the real C. con- 

 nivens in America. The species was soon found in several other 

 places in the neighborhood of New York, and this has led to an 



*Bull. Torrey Club, 26 : 24. 1899. 



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