116 ICONES MUSCORUM. 



bili ; opcrculo fere capsulae aequilongo conico oblique longirostro; 

 calyptra cuculliformi basi lata paulum infra operculum producta 

 glaberrima ; sporis luteo-fuscis granulosis 2 0V0 unc - diametro 

 metientibus. 



Neckera abietixa, Hook. Muse. Exot. t. 7; Schwsegr. Suppl. t. 140; C. 



MiilL Synop. Muse. 2, p. 142. 

 Pilotrichum abietinum, Brid. Bryol. Univ. 2, p. 258. 

 Leptodon circinatus, Sulliv. in Bot. Pacif. R. K. Survey (Whipple), 4, p. 



189, t. 1 (planta mascula). 



Hab. On trees, Northwest Coast, Menzies. Coast range of 

 mountains, south of San Francisco, California, Bigeloiv, 

 Bolander. Vancouver's Island, Lyall. 



The specimens collected by Menzies. and figured by Hooker 

 and Schwaegrichen (1. c), are unusually elongated and distantly 

 pinnate, owing doubtless to local influences, and therefore do not 

 represent the normal form of the species, as here figured from 

 numerous specimens furnished by other collectors. 



This species clearly belongs to Alsia, — a genus closely allied 

 to Leptodon, — and stands in the same relation to Leptodon 

 Smithii that its only congener, Alsia Calif ornica, Sulliv. (Crypt. 

 U. States Expl. Exped. Wilkes, p. 25, t. 25), does to Leptodon 

 trichomitrion. 



TAB. 72 b . — Alsia abietina. 



1. Planta capsuligera. 11. Capsula cum pericluetio. 



2. Planta antheridiophora nat. mag. 1 2. Capsula exsiccata. 



3. Planta exsiccata. 13. Vaginula et pedicellus. 



4. Pars ramuli. 14. Pol. inter, perichaetii. 



5. Folium ejusdem. 15, 16,17. Particular peristeum. 



6. 7. Areolatio fol. baseos et apicis. 18. Operculum. 



8. Sectiones transversales folii. 19. Flos masculus. 



9, 10. Paraphyllia. 20, 21. Antheridia et paraphyscs. 



