Alsia. MUSCI. 409 



2. A. Californica, Sulliv. Near the last : branches shorter, densely leafy ; 

 leaves appressed when dry, rather shortly acuminate, entire or scarcely serrulate at 

 the apex; areolation of shorter oval cells, nearly uniform throughout : capsule cylin- 

 dric, reddish, on a shoi'ter straight pedicel ; teeth longer, minutely punctulate, the 

 processes much shorter. — Lesq. Trans. Amer. Phil. Soc. xiii. 1 1 ; Sulliv. <^ Lesq. 

 1. c, n. 357 ; Sulliv. Icon. Muse. Suppl. 79, t. 59. A. curtipendida, var. Uispanica, 

 Schimp. 



On shaded rocks and sandstone boukli'is, Oakland {Bolandrr) ; also European. 



53. ALSIA, Sulliv. 



Resembling the preceding. Branching stems often circinate when dry. Leaves 



smooth or papillose, the areolation minutely oval-rhombic and punctiform. Capsule 



cylindric, emergent or exserted ; operculum conic, long-beaked. Peristome double, 



the inner processes shorter than the teeth, upon a narrow basal membrane, with or 



without ciliolse. — Proc. Amer. Acad. iii. 184. 



An American genus of three species, nearly allied to Leptodon, Weber (Lasia, Beauv.), and in- 

 termediate between Ncckera and Thuidium. 



% Capsule very sliortlij pedlcelled. 



1. A. Californica, Sulliv. On trees, in dark green masses; secondary stems 

 2 or 3 inches long, subpmnately branched, not circinate, somewhat arcuate, the 

 branches short, slender, not crowded : leaves erect-spreading, ovate- or oblong-lan- 

 ceolate, slightly serrulate at the apex, margins narrowly rctiexed, costa ceasing below 

 the middle, areolation minute and subrhombic, smooth ; leaves on the branches 

 smaller and narrower, the perichaitial long and slender : capsule oblong-cylindrical, 

 straight or slightly curved, scarcely exserted upon a short pedicel : inner processes a 

 third shorter than the teeth ; ciliolaj none or rudimentary. — Muse. Wilkes Exped. 

 25, t. 25 ; Sulliv. & Lesq. Muse. Am.-Bor. Exsicc. n. 268'' (2 ed. n. 398). Neckera 

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



Very common along the coast, Pickering, Bigdoiv, Bolander. 



2. A. abietina, Sulliv. On trees, in loose rigid deep grsen masses ; secondary 

 stems 2 to 5 inches long, simple below, expanded above into a pinnately or some- 

 what bipinnately branched frond, strongly circinate when dry : leaves erect-spreading, 

 lanceolate, shortly papillose on the back above the middle, margins below recurved, 

 serrulate and slightly inflexed above, the costa ceasing below the apex, areolation 

 oval-rhombic, longer in the middle and quadrate at the angles : capsule ovate-oblong, 

 emergent on a very short pedicel, ribbed when dry : peristome as in the last, but 

 ciliohie wanting. • — Icon. Muse. 115, t. 72**; Sulliv. & Lesq. 1. c. 2 ed. n. 400. Neckera 

 abietina. Hook. Muse. Exot. t. 7; Schwaegr. SuppL t. 140. Pilotrichum abietinum, 

 Brid. Leptodon circinatus, Sulliv. in Pacif. R Rep. iv. 189, t. 1. 



Common in the Coast Ranges from south of San Francisco to Vancouver Island. 

 * * Capsule long-pedicelled. 



3. A. longipes, Sulliv. & Lesq. Diffusely cespitosc, grayish green ; secondary 

 stems 3 to 5 inclies high, pinnately and bipinnately branched from the base : leaves 

 oblong-lanceolate, acute, coarsely serrate above, margin slightly recurved, costa ceas- 

 ing above the middle and denticulate on the back at its apex, areolation minutely 

 oval, smooth ; perichsetial leaves abruptly filiform-attenuate : capsule cylindrical, 

 upon a pedicel nearly an inch long, straight : teeth and processes very narrow, the 

 latter a little shorter and dehiscent along the keel ; ciliohie (1 or 2) appendiculate. — 

 Muse. Am.-Bor. Exsicc. 2 ed. 399 ; Lesq. in Mem. Calif. Acad. i. 29 ; Sulliv. Icon. 

 Muse. Suppl. 85, t. 63. 



On rocks in deep canons, Oakland, Bolander. 



