66 METZGERIACEAE 
Exsicc. Hep. Вог.-Аш. 138 (2. 7.). 
On flat compact soil in meadows and besides paths, less com- 
monly on moist banks. Berkeley ; San Francisco ; Mill Valley; 
Stanford University (Campbell), Reche Сайоп, vicinity of San Ber- 
nardino (Parish, no. 3613); Pasadena (McClatchie). Collected 
also by Brewer and by Bolander. 
Sphaerocarpus Californicus is closely related to Sphaerocarpus 
Sphaerocarpus (Dicks.),* differing chiefly in the longer and more 
pointed cylindrical-oblong or fusiform-clavate involucres, which in 
the latter species are commonly pyriform. 
PLATE 100. 
Figs. 9-12, Sphaerocarpus Californicus. 
All figures are drawn from specimens collected in Mill Valley, Marin Co. 
9. Ф plant, with matured sporogonial involucres, natural size. 
10 4 plant, X 12. 
11. Portion of 9 thallus with involucres of various ages, Х 23. 
12. Spore-tetrad, 305. 
2. Sphaerocarpus cristatus sp. nov. 
9 thallus suborbicular, 3-8 mm. in diameter, marginal cells of 
the unistratose lobes 3С-45 и, medial 45-60 и: involucres .85- 
1.2 mm. high, sessile, thickly aggregated, at first cylindrical-ob- 
long, soon becoming subglobose or obovoid, rounded at the apex, 
irregularly circumscissile with age at about the middle or the upper 
portion falling away in fragments, cells near the usually conspicu- 
ous orifice 30-40 и, near the middle 45-80 x 30-40: 4 plant | 
often once furcate with oblong-ovate segments : capsule .5-.8 mm. 
in diameter, on a seta about 40 и in length, the bulbous foot usu- 
ally accompanying the capsule when this is detached from the 
thallus ; Spores separating long before the maturity of the capsule, 
never persisting in tetrads, compressed, rounded-biconvex ог some” 
times concavo-convex, yellowish-brown, 6 5-80 и in maximum 
diameter, cristate, the crests sinuous, 4-7 и high, subcrenulate, 
18-22 in number in the basilar circumference, mostly radiating 
from near the middle of each of the two faces, often 1-3 times 
furcate, sparingly anastomosing, forming sometimes 1-6 (rarely 
more) completely closed meshes in most cases near the middle of 
* Targionia Sphaerocarpus Dicks. РІ. Crypt. 1: 8. 1785. 
E terrestris, minima, Mich. Nov, РІ. Gen. 4. из. СЫЎ 
раггосатри; Michelii Bell. A | 
- App. ad Fl. Pedem. 52. 1792 ( fide аи 
Мет. Acad. Roy, Sci. Turin, 5: 258. 1 i ks 
Sphaerocarfus terrestris Sm. Eng. Bot. Pl. 297. 
ctorum). | : 
1766. 
