FLORA VITIENSIS. 405 
сам coalito.—Samoa (Powell !)—Caulis 1-2 uncias longus, cum foliis 14 lineam latus. Folia tenera, 
азса. 
5. Г. convezula (sp. nov.), Mitt. ; caulis brevis, radicans infra perianthium innovans; folia explanata, 
imbricata, convexa, ovata, apice sinu parvo obtuso obtuse bidentata, rarius integra, rotundata; amphigastria 
parva, bifida, laciniis unidentatis, basi libera ; folia involucralia majora, flabelliformia, amphigastrioque magno 
grosse dentata.—lsle of Pines (Strange!)—Caulis 8-6 lineas longus, cum foliis semilineam latus. Folia 
pallide albo-viridia, crassiuscula. 
6. Г. spinosa, Gottsch. ; idem Ldbg. et Nees Syn. Hep. p. 170.—Hawaii, inter Lejeuniam occulatum 
legit Gottsche. 
ПІ. CHANDONANTHUVS, Mitt. in Hooker, * Handbook of the New Zealand Flora, vol. ii. р- 753. 
1. С. hirtellus, Web. Prod. p. 50 (Jungermannia).— Pacific Islands (Herb. Hooker !). 
IV. PLEOTOCOLEA, Mitt. Linn. Soc. Journ. vol. viii. p. 156. 
1. P. micrantha (sp. nov.), Mitt.; caulis humilis, radiculosus; folia ovali-rotunda, patentia, semi- 
verticalia, involueralia majora, margine dorsali recurva ; perianthium parvum, elongato-ovatum, арісо ultra 
folia involueralia non productum.—Sandwich Islands (Hillebrand!)— Caulis 2-3 lineas altus. Folia 
2 lineam longa, involueralia lineam metientes viridia. Perianthium lineam brevius.— Larger than the 
Indian P. polyrhiza, Hook., but agreeing with it and with P. Junghuhniana and P. Hasskarliana, Nees ab 
E. (Jungermannia), both found in Java, in the perianth, which is plieated throughout its length, and not con- 
tracted at its apex into a tubular mouth, thus differing from Jungermannia as here considered, in which 
the terminal perianth is terete below, plieate towards the apex, and the mouth contracted and dentato- 
ciliate. 
V. SPHAGNOECETIS, Nees ab E. ; Gottsche, Lindenb. et Nees Syn. Hepat. 148. 
1. S. gracilis (sp. nov.), Mitt. ; caulis elongatus, parce radiculosus; folia explanata, orbiculata, cellulis - 
interstitiis latioribus pellucidis discretis areolata; amphigastria obsoleta.—lns. Sandwich (Gaudichaud).— 
Caulis unciam brevior, eum foliis + lineam latus.—Similar in habit to S. communis, but less, with almost 
round leaves, and the marginal cells, instead of being prominent as in that species, are smaller, and less 
easily definable than those of the interior of the leaf. 
VI. Gorrscnea, Nees ab E.; Gottsche, Lindenb. et Nees Syn. Hepat. 13. 
1. G. aligera, Nees ab E. Hep. Javan. p. 67; Gottsche, Lindenb. et Nees Syn. Hepat. p. 17.—Pacific 
Islands (Nightingale! in Herb. Hooker, n. 288), Samoa (Powell! n. 75). 
VII. TRICHOCOLEA, Dumort. ; Gottsche, Lindenb. et Nees Syn. Hepat. p. 236. 
1. T. tomentella, Ehrh.—Samoa (Powell !). 
VIII. SENDTNERA, Endlicher, Gen. p. 1342. 
1. 8. juniperina, Swartz, Fl. Ind. Occid. 1855 (Jungermannia).—Samoa (Powell! n. 142), Hawaii, 
(Douglas! Tolmie! Herb. Hooker). 
IX. MASTIGOPHORA, Nees ab E.; Gottsche, Lindenb. et Nees Syn. Hepat. p. 241. 
1. ЛГ diclados, Brid. ; Web. in Prodr. Spreng. Syst. Veg. vol. iv. p. 224.— Pacific Islands (Nightingale! 
Herb. Hooker), Samoa (Powell !), Upolu (Greffe !). 
X. HERPOCLADIUM (gen. nov.), Mitt. Caulis vage prolifero-ramosus, flagellis elongatis descendentibus 
ventralibus. Folia amphigastriaque conformia, verticaliter inserta, integra aut apice bifida. Perianthium 
versus apicem caulis elongatum. Flores maseuli in caule primario, antheridia in axillis foliorum caulinarium 
disposita. 
å 1. H. bidens (sp. nov.), Mitt. ; caulis procumbens, geniculatus, ramis remotis elongatis, flagellisque 
ex axilla amphigastriorum oriundis divaricatis, ramosus ; folia amphigastriaque coæqualia, patentia divari- 
catave, ovato-oblonga, apice subobliqua, sinu brevi angustissimo oblique bidentata, laciniis acutis, e cellulis 
oblongis firmis erassiuseulis areolata; folia involueralia imbricata; perianthium angustum, elongatum, 
inferne teres, apice obtuse trigonum, ore dentatum.—Sandwich Islands, inter Jungermanniam flexicaulem 
aliasque species Hepaticarum (Hillebrand !).—To the unassisted eye this curious plant appears, when in 
the dry state, very much like a slender state of Sendtnera juniperina, but when the foliage 18 moistened it 
is seen that the leaves are as if entire, for the cleft at the apex is so narrow that it is not at first percep- 
tible, and the amphigastria being hardly distinguishable from the leaves, give the stems the appearance of 
having three equal series of leaves. The perianth is similar to that of Lepidozia, but the whole habit and 
appearance of the stems and foliage is different from both Lepidozia and nat ате The only other 
known species referable to this genus is the Jungermannia tenacifolia, Hook. f. et Tayl. Crypt. Antaret. 
pl. 64. f. 6, which, although closely resembling the species from the Sandwich Islands, has its leaves and 
stipules undivided. 
[PUBLISHED JUNE 1, 1871.] За 
