118 JUNGERMANNIACEAE 
I. CHILOSCYPHUS POLYANTHOS (L.) Corda ; Opiz, Beitr. 651. 1829.* 
Jungermannia polyanthos L. Sp. Pl. 1131. 1753. Hook 
Brit. Jung. AJ. 62. 1816. 
Jungermannia pallescens Schrad. Syst. Samml. Krypt. Gew. 2: 
7- 1797. 
Chiloscyphus pallescens Dumort. Syll. Jung. 67. 1831. 
Chiloscyphus lophocoleoides Nees, Naturgesch. Eur. Leberm. 
3:305. 1816 
Green or pallescent, closely or laxly caespitose: stems 1-j 
cm. long, .18-.45 mm. in diameter,.prostrate or ascending, spar- 
ingly branched, root-hairs conspicuous or nearly obsolete : leaves 
close-imbricate or approximate, patent-horizontal, spreading in the 
plane of the stem or, toward the stem-apex, ascending or semiver- 
tical, quadrate-orbicular to oblong, .7-1.6 mm. x .54-1.2 mm. 
more or less concave ventrally, the apex rounded, subtruncate, ог 
retuse ; leaf-cells translucent, the superior and median 32-65 И; 
the walls somewhat thickened, yet exhibiting obscure trigones ог 
none at all, cuticle slightly granulate or nearly smooth: under- 
leaves oblong-ovate, bifid to the middle or below, the segments 
often linear-subulate, occasionally bearing a single tooth or short 
cilium externally ; autoicous ; androecium terminal or median on 
the main stem, 4 bracts with small dorsal pouches, otherwise sim- 
ilar to the leaves, the margin of the pouch usually with several 
short inflexed cilia; antheridia single or less commonly in pairs 
subglobose, .14-.2 mm. in diameter, the very short stalk composed 
of a single row of cells; axis of 9 branch .3-.6 mm. long; ? 
bracts a single pair, with sometimes rudiments of a second (outer) 
pair, very much smaller than the leaves, retuse or bifid, bracteole 
minute, bifid ; perianth goblet-shaped or obovoid, 2-2.7 mm. long, 
:9-1.6 mm. in greatest width, deeply 3-lobed, the lobes subtrun- 
cate and nearly entire, rarely spinose-dentate : calyptra exserted 01 
included: capsule brown, globose-oval, 1.2-1.5 mm. Х Па 
mm., the valves rigid, of 4 or 5 layers of cells, those of the ежег 
nal layer thick, with columnar or imperfectly semiannular thick- 
enings, those of the inmost layer with very numerous semiannular 
Psion spores 14-20 и, minutely granulate ; elaters 120-200 / у 
-II p. 
| On old logs and оп moist ground among mosses. “ Pape 
Mill Creek" [Marin Со? (Dr. H. М. Bolander, Sept. 9, 1863) 
Sisson, Siskiyou Co. (Howe, 37); near Hay Fork, Trinity Сз 
(1125); North Fork of the Little River (636) and near Mendo? 
pun 
ја Spes 
See footnote under Ricciocarpus, 
page 33. 
