182 JUNGERMANNIACEAE 
leaves present throughout, usually 1-1 the size of the leaves, sub- 
orbicular, or sometimes reniform or ovate, the apex bifid, retuse, 
or entire. Dioicous, autoicous, or paroicous. Sexual branches 
arising, singly, in pairs, or in groups of three, from the axils of 
the underleaves, the 4 branches always originating near the basal 
margin of the underleaf, the 9 commonly median.  Androecium 
(in autoicous and dioicous sp.) small, capitate or linear-amenti- 
form, 4 bracts very small, bifid. © bracts 2 or 3 pairs with 
ovate, or lanceolate, subentire or 2—4-lobed; archegonia 4-12. 
Perianth wanting; the 9 branch developing into a fleshy pendu- 
lous subterranean radicelliferous cylindrical or clavate pouch 
(perigynium), crowned at the mouth with the persistent scale-like 
bracts and lined internally with clavate-papilliform cells. Calyp- 
tra, at maturity, adnate for three fourths or more of its length with 
the perigynium, and almost equally long, its free portion sur 
rounded by the abortive archegonia. Capsule cylindrical, dehis- 
cing to the base by linear spirally wound valves, these bistratos | 
the walls of the outer layer of cells nearly or quite destitute Ol 
local thickenings, those of the inner layer with numerous semi- 
annular bands ; seta long ; involucellum highly developed, finally 
adnate to Ше calyptra and reaching nearly to the line of departure 
of calyptra and perigynium-wall, its cells elongated and sinuous | 
Elaters bispiral. 
т. Kantia rRICHOMANIS (L.) S. Е. Gray, 1. с. 
Мийт trichomanis L. Sp. Pl. 1114. 1753. 
Jungermannia Trichomanis Dicks. Pl. Crypt. 3: 10 И Li 
Hook. Brit. Jung. 4. 70. 1816. 
Jungermannia Sprengelii Mart. Fl. Crypt. Erlang. 133 #2 
Аб. 3817. 
Cincinnulus Trichomanis Dumort. 2. c. 
Calypogeia Trichomanis Corda, Ди, Nees, Naturgesch. В. 
ingly branched, prostrate and terminating obtusely, ог 9 d wi 
uate, ascending, and microphylline at the apex and crowne ‘cate, 
a subglobose cluster of gemmae : leaves usually closely in ђе- | 
mate or even somewhat distant, subrhombic, dimidiate-ovat® 
asi 
onally | 
