80 METZGERIACEAE 
т. FOosSOMBRONIA LONGISETA Aust. 2. 7. [as synonym] Proc. 
Acad. Nat. Sci. Philad. 1869: 228. 1869. 
Androcryphia longiseta Aust. 2. с. 
Stems mostly 6-15 mm. long and once dichotomous, rather 
stout (15-20 cells in thickness), commonly somewhat tuberously 
thickened at apex and perennial through the resumption of apical 
growth on termination of the dry season, root-hairs vinous-purple: 
leaves 1.5-3 mm. long, subquadrate, assurgent or nearly horizontal, 
more or less imbricate, irregularly lobed, toothed, or subentire, 
often of 2-5 layers of cells toward the base ; leaf-cells 30-45 ИХ 
40-60 и near the margin, 40-60 их 60-150 и near Ше base ; mon- 
oicous (polyoicous 2): involucre usually large, 1.5-3 mm. high, 
campanulate, open to the base on the side toward stem-apex ог 
often connate here forming a complete cup, usually with several 
subulate squamules adnate to the outer surface, these mostly short 
but sometimes reaching nearly to the lobate-dentate mouth : seta 
finally 8 18 mm. long; capsule 1-1.2 mm. in diameter, the semi- 
annular thickenings of the inner layer of the wall mostly incom- 
plete : spores yellowish-brown, distinctly compressed, 38-50 |! 
in maximum diameter, strongly and somewhat remotely cristate, 
the crests high, projecting 3-6 и at the margin, 20—30 in number 
т the basilar circumference, more or less obliquely ascending, 
slightly flexuous, thin, acute, usually undulate-serrulate, unequa 
in length, disappearing or sparingly confluent at the middle of the 
face, forming there very rarely 1-3 fully closed meshes; crests 
sometimes mostly replaced by subacute or truncate spines, these 
often numerous and crowded, 30—40 in number in the basilar cif- 
cumference : elaters bispiral, 150-270 м in length. 
: On banks and beside paths. Clarendon Heights, San Fran 
cisco; Mill Valley, Mt. Tamalpais, and Lake Lagunitas, Мапа 
Co.; Duncan’s Mills, Sonoma Co.; Ukiah (743, 785), Mendocino 
Co.; Blue Lake (998), Humboldt Co.; Lake Pilarcitos, San Mateo 
Со.; Reche Саћоп, San Bernardino Co. (Parish, no. 3614); Pase 
dena (A. J. McClatchie); San Diego (Mrs. Katharine Brandegee): 
Collected also by Dr. Bolander ; and by Prof. W. Н. Brewer a 
“ Egon Pass” (in herb. W. Н. Pearson). 
Exsıcc. Hep. Bor.-Am. 118 (2. 2.2). 
Нер. Ат. 157. 
The у type specimen” of Fossombronia longiseta appears pd 
to exist either in that portion of the Austin collection owned by 7 
|. УУ Я 
* Measuring to the extremities of the crests. 
