188 ANTHOCEROTACEAE 
late-cristate thallus, the rarely geminate, often longer involucres, 
the longer capsules, the rather larger, more minutely and thickly 
echinulate or papillate spores, and in the logner, narrower elaters. 
In the southern part of California it makes its nearest approach 
to A. punctatus, but may be distinguished from that species after a 
little experience by the characters of the spores and elaters. The 
involucres in the Californian plants are rarely more than 5 mm. 
long. A. fusiformis ripens its spores in California in April and 
May, at which time the thallus has commonly become shriveled 
and inconspicuous. 
Following Austin’s original description of Anthoceros fusiformis 
three specimens are cited, as follows: “ Observation [Observa- 
tory] Inlet, Columbia, Dr. Scouler in herb. Torrey; also in herb. 
Taylor. California, Bolander. Oregon, E. Hall.” What appear 
to be these three originals are preserved in herb. Pearson. Hall's 
specimen is marked “ К. Mts., Hall,” but this manner of giving 
the habitat of Hall's Oregon Hepaticae is observed elsewhere in 
the Austin collection. 
PLATE 122. ANTHOCEROS FUSIFORMIS. 
I. Plant, natural size. 
2. Portion of thallus, X 23 
3. Anterior margin of thallus-segment in vertical section, Ж 53. 
4 and 5. Dorsal lamellae in vertical section, X 53. 
6. Nearly median Еу section of thallus-segment, X 53. 
7-9. Involucres, 
IO. Vertical қолынды section near thallus-apex, showing поена and arche- 
gonia, Х 53. 
11. Spores, Х 305. 
12. Pseudo-elaters, X 305. 
: I and 9 drawn from no. 1207 (Ross Valley, Marin Co.) ; 2, from no. 1208 
> till Valley, Feb. 22, 1896); 3-6, and то, from microtome sections of material col- 
ected in Ross Valley ; 7, from по. 808 (Pieta, Mendocino Co. ); 8, from a specimen 
, Collected in California by Dr. Bolander; 11 and 12, from no. 15 (Mill Valley). 
