278 
folii dissoluto; cellulis alaribus parvis, angulatis, numerosis, in 
orbem dispositis, fusco-luteis, cæteris abbreviato-linearibus, vel 
anguste parallelogrammis, dense aggregatis Iæviusculis, tota folia 
lutescente transparentia; ramorum minora, magis cucullata, an- 
gustiora, basi parcius excavata, vix auriculata, cellulis alaribus 
paucioribus, cæterisque magis diaphana; perichætium fem. junius 
arcte convolutum; folia parva enervia, obovata, piliforme acumi- 
nata, pilo denticulato, cellulis anguste ellipticis, reticulata; cætera 
desunt. 
Hab. provinciæ Rio de Janeiro (sub 1209, Glaziou). 
minor, gracilior et ramosior. 
Prope Lagoa Santa (Warming). 
Inter Orthostichellas foliis crinitis memorabilis. An Neckera , 
an Pilotrichum latet. 
49. Pilotrichella turgescens C. M. Synops. 
In vicinia Rio Janeiro, sterilem leg. Glaziou (Nr. 3541). 
50. Pilotrichum undulatum C. M. Synops. 
Neckera undulata Hedw. Paraphysantes Mitten. 
Lagoa Santa, ad ramos leg. Warming. 
51. Pilotrichum auronitens Hornseh. Fl. Rrasil. 
Prope Petropolem, sterile leg. Warming. 
52. Prionodon rubiginosus Hpe., n. sp. 
Surculus vage repens, radiculosus, parce fibrillosus; caulis 
basi foliis vetustis obtectus, simplex, superne distiche pinnatim 
ramosus, dendroideus, 4—6" altus, ramis inæqualibus, erecto- 
patentibus, superne ramulosis, rubiginoso-viridibus. Folia un- 
dique imbricata, erecto-patula, plicata, e basi integerrima, latere 
revoluto, contracta, concava, ovato-lanceolata, elongata, usque ad 
apicem remote sinuato-dentata; nervo sub apicem folii dissoluto; 
cellulis alaribus minimis punctatis, dense seriatis, cæteris ellipticis 
incrassatis, folia tota lutescente transparentia; cætera desunt. 
Hab. in vicinia Rio de Janeiro (Glaziou, no. 2791). 
Ex habitu P. pinnati , colore rubiginoso et foliis magis erectis, 
angustioribus, elongato-lanceolatis primo visu diversus. 
