Brixton : Bryological notes 263 



teeth on the back are peculiar in A. abietina, and resemble those 

 of Pterogonium gracile, though the size and habit of the plants is 

 quite distinct, as well as the leaf-characters. 



Most bryologists will admit that Leptodon Smithii and L. iricho- 

 mitrion are not congeneric and accept Forsstroemia Lindb. for the 

 latter and its allied species ; but Paris' Index, although accepting 

 both genera, limits Forsstroemia to F. trichomitrion (Hedw.) Lindb. 

 and some other exotic species, and leaves most of our North 

 American species in Leptodon with L. Smithii. Kindberg is more 

 nearly correct in the list of species he includes, but Cryphaea 

 Ravenelii belongs where Austin placed it ! 



Jaeger in the Adumbratio listed three of our species under 

 Lasia Beauv. 1805 { non Bridel) but this generic name is antedated 

 by Lasia Loureiro, 1790, and that is why Lindberg substituted 

 Forsstroemia in 1862. Sullivant made an anagram of Lasia when 

 he described Alsia because of the resemblance between Lasia 

 tricJiomitrion (Hedw.) Beauv. and Alsia californica Sull. This is 

 the type species of Alsia and its synonymy is as follows : 

 Alsia californica (Hook. & Arn.) Sull. Proc. Am. Acad. Arts 



& Sci. 3 : 185. 1857 ! Muse. Wilkes Exp. 25. //. 25. 1859. 

 Neekera californica Hook. & Arnott, Bot. Beechey Exp. 162. 



1833- 



Antitrichia pseudo-californica Kindb. Eu. and N. A. Bryin. 9. 



1897. 



It started as a monotypic genus, and it was not till 1864, in 

 the Ieoues, that Sullivant enlarged the genus to include Neekera. 

 abietina Hooker. This was undoubtedly a mistake which Kind- 

 berg has detected, but failed to rectify in the correct way. I 

 therefore propose the following new name : 



Dendroalsia 



Type species : Dendroalsia abietina (Hook.) 

 Neekera abietina Hook. Muse. Exotici pi. 7. 18 18. 

 Pilotrichum abietimim Brid. Bryol. Univ. 2 : 258. 1827. 



Type locality : N. W. Coast of North America. Mensies, 

 1792. 



Type in herbarium of Hooker. 



These plants were figured 6 inches high, with stems naked 



