398 
O. Lyellit var. papillosum, Hpe.; L. & J. Man. 178 (1884). 
“ Leaves more highly papillose.” 
As the description given by the Manuel seems very meagre. 
Hampe’s original is quoted :—Laxe cespitosum, adscendens, fusco- 
viride. Caulis curvatis, ramulosus, inferne nudus, superne plan- 
iuscula, foliis oblonga-lanceolata, cellulis alaribus subquadrato- 
angulatis, hyalinis, superne dense seriatis, elliptico-rotundis, in- 
conspicuis, pagina folii papillis prominentibus scabra, nervo 
carinato, apice desinente. Theca sessilis, elliptica, leviter striata; 
peristomia simplici. In Mont. Sierra Nevada, Californiz. ad 
saxa? (Bauer). Adnot. Specimini manca, tame species mem- 
orabilis foliis secundis. O. Texana, Sull. affine? We have seen 
the type of this species at the British Museum, and compared it 
with the specimens distributed by Sullivant & Lesquereux as no. 
185 (1. c). The type and a portion of no. 185 agree in the dark 
green color of the plants, the erect, appressed, strongly papillose 
leaves, without any propagula. The greater portion of no. 185, 
however, in our set has the leaves squarrose, the stems more 
flexuose and the capsules more conspicuously exserted, approach- 
ing O. Pringlei, though the color is darker. | 
O. Pacificum, Hpe.; ms. was collected in 1862 by Bauer on 
granite rocks near San Francisco on the shore of the ocean. The 
plants are dark green, 6 cm. long, rigid, with appressed leaves and 
little fruit. The calyptras are immersed and hairy, the old cap- 
sules exserted on short pedicels and the lids are gone. It does 
not differ from O. papillosum sufficiently to be a species. . 
In Sullivant’s herbarium I found the following note: 
“O, Lyellit shows a most wonderful disposition to vary accord- 
ing to place of growth. The Californian and Oregon specimens 
differ only from the European in having longer, narrower leaves, 
more crisped and undulate on the margins when dry, and scarcely 
ever having on their surface the articulated glands (conferva or- 
thotrichi). In nothing else is any difference perceptible.” (EX 
amined several times carefully —W. S. S., Oct., 1856). 
In the original description of O. Lyellit (Muse. Brit., p. 130), 
the leaves are described as follows: “On various parts of their 
surface the conferva orthotrichi grows in abundance, so that es 
apps strewn with a brown powdery substance.” 
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