280 BRYACE^. [Alsia. 



1. A. Californica, Sulliv. Widely cespitose, bright green ; 

 secondary stems subpinnately divided : leaves loosely imbricate, 

 oblong-lanceolate, spreading and divergent, concave, reflexed 

 on the borders, flat at the apex, serrulate ; costa vanishing in 

 the middle ; branch-leaves smaller; cells of the upper and mid- 

 dle portions round-rhomboidal, of the lower longer and pellucid, 

 of the alar quadrate and obscure; upper perichaetial leaves 

 sheathing, filiform-acuminate; teeth distinctly trabeculate, 

 yellowish inside, pnnctulate-scabrous ; annulus none. — Proc. 

 Amer, Acad. iii. 185, and Muse. Wilkes Exp. 25, t. 25. Neclcera 

 Californica, Hook. & Arn. Bot. Beechey, 162. 



Hab. California, on trees [Pickering, Bigelow, Bolander, etc.); not 

 rare. 



2. A. abietina, Sulliv. Plants in wide rigid dark green 

 tufts ; secondary stems solid, elastic, simple at base, ])innately 

 or subbipinnately branching above, frondiform, circinate when 

 dry: branch-leaves five-ranked, imbricate, open-erect, ovate- 

 lanceolate, obtusely acuminate, carinate-concave, papillose on 

 the back and serrulate above, recurved on the borders toward 

 the base ; costa vanishing below the apex ;_ perichoetial leaves 

 striate at base or excentrically costate to the middle : calyptra 

 longer than in the last species : capsule oblong-ovate, thin, 

 costate when dry, short-pedicellate ; annulus compound, revolu- 

 ble. — Icon. Muse. 115, t. 12^- Neckera abietina, Hook. Muse. 

 Exot. t. 7 ; Schwaegr. Suppl. ii. 2. 154, t. 140. Pilotrichum 

 ahietinura, Brid. Bryol. Univ. ii. 258. Leptodon circinatus^ 

 Sulliv. Pacif. R. Rep. iv. 189, t. 1, male plant. 



Hab. On trees, Northwest coast [Menzies) ; Vancouver Island (Lyall) ; 

 California {Bolander, Bigeloiv, Watson). 



3. A. longipes, Sulliv. & Lesq. Tufts soft, grayish green; 

 secondary stems soft, pinnately and bi})innately branching 

 from near the base, subcompi-essed : leaves oblong-lanceolate or 

 linguiform, acute, coarsely serrate above, concave, plane on the 

 borders; costa abruptly vanishing above the middle, denticulate 

 on the back; perichaetial leaves tubulose, abruptly narrowed 

 and denticulate to a reflexed subulate apex : calyptra long, 

 cylindrical ; pedicel four times as long as the perichgetium : teeth 

 long, narrowly lanceolate ; inner segments shorter, separated by 

 1 or 2 appendiculate cilia ; annulus none. — Muse. Bor.-Amer. 

 Exsicc. ed. 2, n. 399 ; Sulliv. Icon. Muse. Suppl. 85, t. 63. 



Hab. On rocks in deep canons, California (Bolander). 



