96 REPORT ON TWO BOTANICAL COLLECTIONS FROM 
B. ACROGYN X. 
11. JAMESONIELLA COLORATA, Spruce, in Journ. Bot. xvi. (1876), p. 30. Jungermannia 
colorata, Lehm. in Linnea, iv. (1829), p. 366. 
Summit of Roraima, Je Connell & Quelch, 539 in part. 
America, Australia, South Africa. Very common. 
12. SYZYGIELLA QUELCHII, Steph., n. sp. Sterilis magna, fusco-purpurascens, tenera et 
flaccida, aliis hepaticis sparsim consociata. ` Caulis ad 8 cm. longus simplex 
(semper?). Folia opposita, conferta, assurgentia, si alam decurrentem anticam 
excipis oblique falcato-ovata, apice duplo angustiora quam basi, oblique truncata 
vel lenissime emarginata, omnino integerrima, angulis solum dentiformibus; 
margine postico valde arcuato, basi folii oppositi brevissime coalito ibidemque 
hamatim auriculato, margine antico substricto breviter recurvo, longe decurrente, 
folia tamen antice haud attenuata sed oblique truncata et abrupte desinentia, folio 
opposito minime coalita, Cellule foliorum nodulose incrassat:e, nodulis maximis 
nusquam confluentibus, multo majores quam in S. manca, Steph. 
Roraima, Ledge, 7500—8000 ft., McConnell & Quelch, 334/14 in part. 
A. most beautiful and very curious plant; the two opposite leaves are quite erect and 
touch each other, the stem being perfectly hidden when seen from above. At the 
postical base these two leaves are united for a very short space; just above this point 
they are rounded off and much projecting, and have a large incurved acuminate 
lobule. 
18. SYZYGIELLA PERFOLIATA, Spruce, in Trans. Edinb. Bot. Soc. xv. (1885), p. 500, in adnot. 
Jungermannia perfoliata, Sw. Prodr. Veg. Ind. Oec. p. 143. 
Summit of Roraima, Je Connell & Quelch, 524 in part. 
Found in Venezuela and the West Indies. 
14. PrAGIOCHILA AÉREa, Taylor, in Hook. Lond. Journ. Bot. v. (1846), p. 263. 
Roraima, Ledge, 7500-8000 ft., McConnell & Quelch, 334. 
Found before in Venezuela and Mexico. 
15. PLAGIOCHILA GAVANA, Steph., n. sp. JDio?ca, spectabilis, pallide glauco-virens, state 
flavo-virens, effuse czespitans. Caulis ad 10 em. longus, longe remoteque pauci- 
ramosus, ramis late divergentibus, apice ssepe fasciculatis ubique equaliter foliatis. 
Folia magna, tenera, remotiuscula, basi tantum imbricata, subrecte patula, breviter 
inserta, 7. e. basi antica et postica fere opposita, breviter decurrentia, ceterum ovato- 
oblonga, apice fere triplo angustiora quam basi, margine antico substricta recurva 
subintegerrima, margine postico arcuata versus basin ampliata, rotundata ibidemque 
cum folio opposito ad cristam erectam conniventia, longe spinosa, spinis sub 30 
magnis approximatis angustis longe acuminatis recte patulis 7 cellulas longis basi 
2-4 cellulas latis. Folii cellule 34X50 p, trigonis majusculis ; basales 34X 80 u, 
parietibus equaliter incrassatis. Perianthia in caule terminalia, geminatim 
innovata, foliis parum longiora, plus duplo angustiora quam longa, antice late alata, 
