124 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



to his account the perianths are considerably shorter than the 

 bracts, and yet he regards them as "normal-sized and perfect." 

 They are said to be four- or five-plicate in the upper part, 

 abruptly contracted at the mouth, and entirely free from the 

 bracts, the latter being similar to the leaves. The writer is 

 unable to add to this description, since the specimens at his 

 disposal are wholly sterile, but it seems hardly probable that 

 the perianths studied by Pearson were associated with fer- 

 tilized archegonia. 



The Calif ornian species of Jungermannia are in need of fur- 

 ther study. In September, 1866, Bolander discovered two 

 species, /. bolanderi Gottsche and /. danicola Gottsche, on Mt. 

 Dana, at an altitude of about 3100 meters. Neither of these 

 species has since been collected, and our knowledge concerning 

 them is still unsatisfactory, as Howe has pointed out (pages 

 99 and 101). According to his descriptions and Gottsche's 

 figures, 26 /. danicola is paroicous and is evidently a member 

 of the /. spluzrocarpa group. /. bolanderi, on the contrary, 

 may be an ally of /. pcndletonii, and Pearson in a recent letter 

 expressed the fear that the two species might prove synony- 

 mous. A very fragmentary specimen of /. bolanderi in the 

 herbarium of the New York Botanical Garden shows that 

 this is probably not the case. The leaves do not show a two- 

 layered area; neither do they clasp the stem, but spread ob- 

 liquely, as Gottsche's figures show. Howe's description of 

 the perianth in an immature condition is much like Pearson's 

 account of that organ in /. pendletonii, but fully developed 

 perianths might perhaps yield distinctive characters. 



19. Jungermannia riparia Tayl. 



In the rocky bed of a stream, near Willoughby Mine, Sierra 

 County, October, 1921, Mrs. Sutliffe; near Shasta Retreat, 

 Siskiyou County, September 1, 1922. Miss Eastwood. New 

 to California; widely distributed in Europe but previously 

 known in North America from British Columbia and Wash- 

 ington only. 



^Published by Underwood, Bot. Gaz. 13: pi. 3, 5. 1888. 



