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formia, erecto-patentia, cellulis basilaribus rectangulis, fere sub- 
hexagonis, fulvis, cæteris caulinis similibus, parce laxioribus. Seta 
radicalis gracillima, apice parce incrassata, crocea, adscendens, 
Tamos paårce superans.  Theca parva rubra (junior) adscendens 
… ånguste oblonga incurvata, basi callosa, vel strumulosa, operculo 
Curvirostro, theca breviore. 
Specimina in Brasilia australi lecta adservo. 
Ab H. pungenti differt: Caule crassiore, ramis teretibus den- 
Sius foliosis, foliis -firmioribus, cellulis alaribus reticulatis, seta 
radicali, nec axillari, longiore. 
e. cæspitosa, Rhapludorrhyncha Schimp. 
67. H. subdepressum Hpe., Symb. XXIV, 1877. 
Prope Rio de Janeiro: Glaziou (7937). Prope Apiahy: 
Puiggari. 
68. H. leucostomum Hpe. 
Monoicum, sordide lutescens, novellis pallidioribus.  Caulis 
decumbens ramosus, ramis subteretibus uncialibus, apice innovante 
Tamulosis, curvatis.  Folia inferiora undique dense imbricata, 
Superiora homomalls, ovato-oblongo -lanceolata, acuminata concava, 
integerrima , latere plus minusve revoluta plicata, enervia; cellulis 
alaribus numerosis rectangulis aureis, fere basin totam folii occu- 
Pantibus, cæteris inferioribus longioribus, anguste ellipticis utrinque 
åcutis, versus apicem folii sensim brevioribus, plus minusve pellu- 
Cida; perichætialia erecta, vaginantia, adpressa, exteriora breviora 
Concava, ovato-lanceolata, intériora longiora attenuato-cuspidata, 
integerrima, enervia, omnia manifeste margine revoluta, cellulis 
" longioribus linearibus reticulata.  Seta brevi (3—4'”) ad latera 
Tåmorum solitari, vel setis ternis, æquitantibus, adscendentibus, pallide 
Tubentibus.  Theca parva, pyriformis, horizontalis, obliqua, rubra ; 
Operculo prominente umbonato, pallido, brevi-rostrato, deoperculata 
—… Suburceolata, ochracea; peristomii dentibus exter. lanceolatis acutis, 
… dense trabeculatis, linea verticali exarata, flavescentibus, incurvis, 
