FRULLANIA 171 
Key to the Species. 
Lobules galeate (when inflated), about as broad as long; perianth terminal on the 
ma or a leading branch 
Dioicous, flagelliferous ; lobules s (есері those of bracts and of leaves subtend- 
ing branches) always inflated, slightly longer than broad. 1. А Bolanderi. 
Autoicous, flagella wanting ; lobules, when inflated, broader than long, very often 
evolute, 2. F. Catalinae. 
Lobules oval-cylindrical to short-clavate, 14-214 times as long as broad; dioicous ; 
perianth terminal on a rather short lateral branch.* 
Dorsal lobes of the кы rounded-obtuse {о acuminate- lean usually (but 
not always) marked with a short Gordian line x slightly enlarged discolored 
cells; lobules separated from the stem by a their own width; underleaves 
mostly rhombic-obovate, gradually шы, tot ~ base and without a trace of 
an auricle, the margins plane, often bluntly unidentate on either side. 
4. Е Franciscana. 
Dorsal lobes of the leaves rounded-obtuse, discolored cells scattered or wanting ; 
lobules separated from the stem by less than half their width ; underleaves sub- 
quadrate-orbicular, more or less auriculate at base, the margins sie or slightly 
3. Ғ. Californica. 
Dorsal lobes of the leaves acute or more свађају acuminate-apiculate, discolored 
cells scattered or wanting, rarely in a short median line ; lobules separated from 
the stem by about their o width; underleaves suborbicular or reniform, 
auriculate at base, the margins strongly recurved at least toward the apices. 
‚ Jisquallensis. 
I. Subgenus TRACHYCOLEA Spruce. 
FRULLANIA BoLANDERI Aust. Proc. Acad. Nat. Sci. Philad. 
1869: 226. 1869. Evans, Trans. Conn. Acad. то: 8. i. 
— 
Frullania Petalumensis Gottsche; Bolander, Cal. Med. Gaz. 
1870: 184 (40) (name only). 1870. 
Frullania Нап Aust. Bull. Torr. Bot. Club, б: 20, : 1875. 
Dark green, varying to reddish-brown, closely appressed, dif- 
fusely repent or caespitose: stems 6-20 mm. long, .07-.14 mm. 
in diameter, irregularly pinnate, the branches often prolonged into 
erect or ascending flagella, these crowned at the apex with a few 
элш oo leaves but furnished otherwise only with patent- 
horizontal or subsquarrose underleaves and the merest rudiments 
of lateral leaves: dorsal lobes of leaves mostly subimbricate, as- 
се та Моден obliquely ovate ог semiorbicular, .35—.5 mm 
.27-.4 arching over the stem and subtruncate at base, 
ene the slightly decurved apex rounded-obtuse ; lobules large, 
galeate, .23-.32 mm. x .2—27 mm., truncate at base, close to the 
* While the three Californian species of this section are closely allied and have long 
been confused, they are nevertheless entirely distinct. The credit of finally disen- 
tangling and дело па them belongs largely to Dr. Evans. 
