166 BRAZILIAN MOSSES. 
Stagnant pool, near Rio. July, 1837, n. 11, (3). 
130. Riccia paradoxa, nov. sp. Fronde oblonga (subinde ob- 
longo-obovata) flaccida subsimplici subplana glauca inferne 
atropurpurea margine subundulata, capsula nunc in fronde 
omnino immersa, nunc in pagina superiore frondis extante 
et squamis involucralibus 2-3 rotundatis dentatis membra- 
naceis cireumvolutis obtecta, sporulis majusculis muricatis. 
Moist shady bank, near Oeiras. Very few specimens were 
gathered of this highly curious plant. 
Fronds scarcely more than one fourth of an inch in length, 
the margin crenulate and wavy, much inflexed when dry, tex- 
ture very thin, the epidermis composed of large cellules with 
indistinct pores, nerve thick and broad, covered beneath with 
numerous tough whitish radicles, accompanied by a few ovate 
acuminate scales. In the structure of the external fructifica- 
tion there is a manifest approach to Spherocarpus, from which 
it differs in the ovate form of the involucrum, which is com- 
posed of at least two separate portions folded together. Ca- 
lyptra roundish-obovate. Sporules about 100 in each capsule, 
reddish-brown, somewhat angular and distinctly muricate. 
The immersed capsules are precisely conformable to the 
generic character. 
131. Marchantia anapodophylla, Richard (fide Taylor). Morro 
Velho. 
The specimens do not show any calyx, d on that account 
rather belong to Fegatella. 
132. Plagiochila Migueliana ? Lind. 
133. Plagiochila distinctifolia, Lind. (fide Taylor). Trees, 
Minas. Oct. 1840. 
134. Noteroclada confluens, Tayl. MSS. On a moist bank, 
Organ Mountains. 
Similar to Jungerm. hyalina, but larger, n. 32, (2). 
135. Jungermannia serrulata, Hooker, Musc. Exot. 1.88, 
n. 42, (1). 
136. J. connata, Swartz, n. 43, (1). 
137. J. diffusa, Sw. (Frullania dichotonia; Raddi). Arrial das 
Merces. Oct. 1840. 
