153 81 



formia, erecto - patentia , cellulis basilaribus rectangulis, fere sub- 

 hexagonis, fulvis, caeteris caulinis similibus, parce laxioribus. Seta 

 radicalis gracilliina, apice parce incrassata, crocea, adscendens, 

 ramos parce superans. Theca parva rubra (junior) adscendens 

 anguste 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. csespitosa, Wiapliidorrhynclia Schimp. 



67. H. subdepressum Hpe., Synib. XXIY, 1877. 



Prope Eio de Janeiro: Glaziou (7937). Prope Apiahy: 

 Puiggari. 



68. H. leucostomum Hpe. 



Monoicum, sordide lutescens, novellis pallidioribus. Caulis 

 decumbens ramosus, ramis subteretibus uncialibus, apice innovante 

 ramulosis, curvatis. Folia inferiora undique dense imbricata, 

 superiora homomalla, ovato-oblongo-lanceolata, acuminata concava, 

 integerrima, latere plus minusve revoluta plicata, enervia; cellulis 

 alaribus numerosis rectangulis aureis, fere basin totam folii occu- 

 pantibus, caeteris inferioribus longioribus, anguste ellipticis utrinque 

 acutis, versus apicem folii sensim brevioribus, plus minusve pellu- 

 cida; pericha3tialia erecta, vaginantia, adpressa, exteriora breviora 

 concava, ovato-lanceolata, interiora longiora attenuato-cuspidata, 

 integerrima, enervia, omnia manifeste margine revoluta, cellulis 

 longioribus linearibus reticulata. Seta brevi (3 4 //y ) ad latera 

 ramorum solitari, vel setis ternis, aequitantibus, adscendentibus, pallide 

 rubentibus. 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, 



