OP ARTS AND SCIENCES. 287 



99. H. MICROPHYLLUM, Sio. / Hedw. Spec. Muse. t. 69. — Ground 

 and stones in fields. 



100. H. APicuLATUM, Hornsch. Fl. Bras. p. 87. — Logs on mar- 

 gins of rivulets. 



101. H. CUPEESSOIDES, C. Mull. Synop. 2, p. 303. — Fallen trees 

 in forests. 



102. H. INSULARUM (sp. nov.) : monoicum IT. cupressiformi similli- 

 mum majusculum ; ramis latiuscule complanatis ; foliis falcato-secundis 

 longe subulatis vix serrulatis, cellulis alaribus utrinque ternis magnis 

 oblongis aureis vesiculaeformibus, perichaetialibus erectis ; capsula in 

 pedicello tenui longissimo parva gibboso-ovali ; operculo longe aciculari- 

 rostrato. — Decayed logs. — The broad flat, shining branches, the long 

 slender pedicel, the small capsule, the long rostrate operculum, and the 

 large ventricose alar cells of the leaf, are the distinguishing marks of 

 this species. 



103. H. SERRULATUM, Hedw. Sp. Muse. p. 238, t. 60. — On the 

 ground among decayed leaves. 



104. H. PUNGENS, Hedw.; D. ^ M. Prod. Fl. Bryol. Surinam, 

 p. 35, t. 19. — Trees and bushes. 



105. H. Wrightii, Sulliv. Mosses of U. States, p. 65, S^ Icon. Muse, 

 t. 127 ined. — Roots of trees, etc. 



106. H. LoxENSE, Hook.; SeTvwcegr. Suppl. t. 259. — Bushes in 

 ravines. 



107. H. TENERUM, Sw. f Mull. Synop. 3fusc. 2, p. 397. — On the 

 ground and decayed wood, common. 



108. H. ACESTROSTEGUM (sp. nov.) : monoicum exiguum prostra- 

 tum intertextum luteolo-viride nitidum ; caule ramis ramulisque nume- 

 rosis compressis inordinate subpinnatimve dispositis instructa ; foliis con- 

 fertis e basi constricta oblongo-ellipticis cymbiformi-concavis in pilum 

 longum denticulatum productis ecostatis pellucidis minute lineari-areo- 

 latis, cellulis alaribus magnis ventricosis aureis ; capsula in pedicello 

 lasvi oblongo-ovali exannulata cernua vel pendula ; perist. dent, linea 

 lata notatis, ciliolis singulis ; operculo longissime aciculari ; calyptra 

 angusta dimidiata. — On the bai'k of trees. — The leaf in shape and 

 structure resembles that of H. Schwanechianum ( C. Midi, in Bot. Zeit. 

 1858, p. 172), which however is a larger species with different ramifi- 

 cation and inflorescence. 



109. H. PLANUM, Brid. ; Schwcegr. Suppl. t. 280. — Logs and 

 stumps. 



