BLASIA 17 
3-spiral, 225—400 их 9-12 p; spores 84-105 и x 51-69 и, 4 
or 5 ce!ls in length and 2 or 3 in greatest width. 
On banks of streams, along the North Fork of the Little River, 
Mendocino Co. (60s, 654, 657). 
Реда epiphylla (L.) Corda and P. endiviaefolia (Dicks.) Du- 
mort.* may both occur in California. P. epiphylla differs from P. 
Neestana in being monoicous and in the reduction of the involucre 
to a scale or flap on the posterior margin of the cavity from which 
the calyptra arises. P. endiviaefolia ТР. calycina (Tayl.) Nees] is 
dioicous, but differs from both the others in the greater develop- 
ment of the involucre, which forms a tube about 4 mm. high, from 
which the calyptra scarcely ever protrudes, and is markedly differ- 
ent from both in characters of elaters and elater-bearers, the latter 
being, according to Jack,t often as many as 100, much longer and 
more slender (600-800 и x 5 и) and bispiral, while the true elaters 
are shorter than in the other two species (150-200 р), less con- 
torted, and 3- or 4-spiral. Semiannular thickenings, conspicuous 
on the inner wall of the capsule of P. epiphylla and Р. Neestana, 
are wanting or obscurely developed in P. endipiaefola. 
A sterile Рега was collected in 1894 by Messrs. M. S. Baker 
and F. P. Nutting in the mountains south of Dixey Valley in Las- 
sen Co., but the species is scarcely determinable. Dr. Bolander 
lists “Р, calycina ” in his “ Catalogue of the plants growing in the 
Vicinity of San F rancisco," but we have been able to see no Pelia 
of Dr. Bolander's collecting. 
15. BLASIA L. Sp. Pl. 1138. 1753. Ex Mich. Nov. Pl. Gen. 
I4. 1729. 
Gametophore dark- or bluish-green, becoming yellowish, usu- 
ally several times dichotomous, forming rosettes or irregularly 
tangled tufts, somewhat transitional in character between the thal- 
loid and foliose types, 5-10 cells in thickness along the пея ог 
expanded costa, becoming gradually thinner toward the unistratose 
border, the latter sometimes merely crenulate or sinuate but more 
often running out into rounded, distant, or close and qe 
leaf-like lobes ; root-hairs colorless, springing from the costa, 0 e 
numerous toward the base and fastening the plant closely to the 
Substratum,... Underleaves represented by small, oblong, ovate, or 
* Rec. d'Obs. Jung. 27. 1835. 
T Flora, 81 : 6, 7. 1895. 
