398 FLORA VITIENSIS. 
XIX. Sematophyllum, Mitt. Caulis procumbens repensve, pinnatim ramosus. Fructus e 
caule vel e ramis oriundus. Theca oblonga, inclinata, operculo longo subulato, peristomio interno 
processibus in membrana impositis, ciliis nullis vel imperfectis. 
An extensive genus of Mosses, with nearly always nerveless leaves, in which the alar cells at the angles 
of the leaf are enlarged, and of a different colour from those immediately above them. The species not yet 
found in Viti are :—1, 8. brevicuspidatum, Mitt. Linn. Soc. Journ. vol. x. p. 183, from Samoa, Manua, on 
large trees (1500 feet) (Powell! n. 137), Sandwich Islands and South Sea Islands (Herb. Hooker!) ; 2, 
S. macrorhynchum, Mitt. Linn. Soc. Journ. vol. x. 1868, p. 183, from Samoa, Manua, on large trees in moist 
places (2000 feet) (Powell! n. 115); 8, S. turgidum, Dozy et Molk., C. Mueller, Syn. vol. ii. p. 396 
(Hypnum), from Samoa, Tutuila (Powell!) ; 4, 8. stigmosum, Mitt. Journ. of the Proceed. Linn. Soc. 1868, 
p- 181, from Samoa, Upolu, Matafao (1000 feet) (Powell! n. 21); 5, 8. lamprophyllum, Mitt. Journ. of 
the Proceed. Linn. Soc. 1868, p. 183, from Samoa, Upolu, on trees (1000 feet) (Powell! n. 114) ; 6, 8. fissum, 
Mitt. Journ. of the Proceed. Linn. Soc. 1868, p. 182, from Samoa, Upolu, on trees (Powell! n. 116) ; 7, S. 
opæodon, Sull. Amer. Expl. Exped. t. 11 B, from Sandwich Islands (Douglas!) ; 8, S. contiguum, Hook. f. et 
Wils., from Lord Howe's Island (Milne!), Isle of Pines (Strange! M'Gillivray !), St. Paul's Island (Strange !). 
1. S. rigidum, Nees et Reinw. (Hypnum), Bryol. Javan. t. 238; dioicum ; caulis procumbens, 
arcuatus, apice radicans, inde prolifero continuatus erectus vel ascendens, arcuatus, arbusculoso- 
ramosus; folia patentia in cauli primario late ovalia subito in acumen subulatum denticulatum pro- 
ducta in ramis assurgentibus late ovato-lanceolata superne denticulata, ramulina elliptico-lanceolata 
margine incurva serrata, omnia cellulis angustis alaribus conspicuis flavis, perichætialia erecta acumine 
elongato loriformi dentato; theca in pedunculo longissimo ovalis, horizontalis, operculo conico acu- 
minato.—Hypnum Calderense, Sull. Amer. Exped. t. 15?—Viti Levu (Milne!). Also in Isle of 
Pines (Strange !), Samoa, Tutuila (Powell ! n. 55), Aneitum (Milne !). 
A very large and handsome species, which occurs also in Java. 
2. S. papillatum, Harvey in Lond. Journ. of Bot. 1840; Hook. Icon. Plant. Rar. i. t. 23. f. 8 
(Hypnum) ; dioicum ; caulis procumbens, arcuatus, ramulis pluribus breviusculis; folia caulina 
patentia ovata in acumen elongatum subulatum producta, ramea ovata subulato-acuminata, omnia 
concava margine serrulata, cellulis angustis dorso dense papillosis alaribus distinctis flavis, perichæ- 
tialia longiora longe subulata serrulata; theca longissime tenui-pedunculata, parva, oblonga, horizon- 
talis, demum curvata, operculo conico acuminato, peristomio interno, ciliis in uno coalitis.—Ovalau, 
on stumps of trees in high ground, frequent (Milne!). Also Samoa, Tutuila (Powell, n. 25). 
Far less in all its parts than S. rigidum, and, like it, found also in Java, as well as in Borneo and the 
Malayan Peninsula. It appears to grow in very extensive loosely-matted patches, spreading over decayed 
wood. 
3. S. Borbonicum, Bel. Voy. Crypt. t. 11. f. 2 (Leskea) ; monoicum, depresse cæspitosum, 
ramis ascendentibus decurvis; folia compressa secunda curvata anguste elongate lanceolata concava 
serrulata, cellulis elongatis quadripapillatis alaribus magnis hyalinis, perichetialia erecta subulato- 
attenuata serrulata ; pedunculus minute scabrosus; theca parva, oblonga, horizontalis, operculo tenui 
longirostro.—Hypnum Pickeringii, Sull. Amer. Expl. Exped. t. 15 A.—Viti (Milne !, Seemann !). 
Also Solomon Islands (Milne), Samoa, Tutuila (Powell! n. 117), Isle of Pines (Strange !). 
Trisus IX. STEREODONTEZE.— Fructus in ramulo brevissimo laterali sæpius longe peduncu- 
etus. Folia binervia vel enervia, cellulis basilaribus ad angulos вере abbreviatis densioribus. 
The following members of this tribe have not yet been found in Viti:—I. Ехторох, С. Müll. 1. Е. pal- 
lidus (sp. nov.), Mitt.; monoieus; rami procumbentes, pinnati ; folia compressa late ovata acuta subacumi- 
natave brevissime binervia margine subserrulata, cellulis angustis ad angulos basalibus pluribus abbre- 
viatis quadratis, ramulina compressa ovali-elliptica acuta apice subserrulata, perichætialia erecta basi ovata 
