FLORA VITIENSIS. 391 
Trizus V. BHACOPILEA.— Folia insequalia, biformia, omnia siccatione sursum involuta, 
Pagina mterlore ad caules latus superius spectante. 
The following genus has not yet been found in Viti:—T. Powe 114, Mitt. Linn, Soc. Journ, vol. x. p, 
187, P, involutifolia, Mitt. 1. ¢.—Sa I ; = . 
(1-2 feet) (Po ye I! n. 43), moan Islands, Tutuila, on a Cocoanut-tree a little inland; Fangasa Bay 
VII, Rhacopilum, Beauv. Prodr, p. 36. Caules 
apr prostrati, radicantes, parum vel subpinnatim 
ramost. Folia diversiformia, in caulis latere super 
iore minora, stipuliformia. Fructus e caulis latere 
oriundus; theca in pedunculo trigono elongato cylindracea, suberecta horizontalisve, demum plicata, 
peristomio perfecto, calyptra dimidiata vel plurifida sepe pilosax—Musci terrestres vy. in arborum 
truncis putridis degentes, czspites latos depressos formantes, foliis intense viridibus siccitate incurvis. 
A genus well distinguished by the peculiarity of its leaves being of a different form on the upper side 
of the stems from those which are inserted on the lower side; these latter, too, have always their inner sur- 
face turned upwards, so that, at. first sight, their insertion might be supposed to be distichous. All the 
species are very similar, but differ in size and some minute particulars, 
1. R. spectabile, Reinw. et Hsch. Bryol. Javan, t. 144 et 145; dioicum; folia majora late 
ovata acuta margine serrata nervo in mucronem excurrente, minora basi ovata lanceolata, omnia 
cellulis rotundis vel oyali-rotundatis areolata, perichietialia ovato-lanceolata subulato-attenuata in- 
tegerrima; theca longe pedunculata, elougata, horizontalis, demum deflexa, basi substrumosa.—Viti 
(Seemann !). Also Samoa and Tutuila (Powell! n. 65). 
These specimens differ a little from the common state of the species found in Java in having the areola- 
tion rather more lax, but in size and appearance they correspond closely. 
2, R. cuspidigerum, Schw. in Freycinet, Voyage, 1826, p. 227; dioicum?; folia majora ovata 
obtusiuscula margine snbintegerrima plus minus incurva convolutacea, minora ovato-lanceolata, 
omnia nervo in mucronem excurrente cellulis parvis densis rotundis obscuris areolata,—R, convolu- 
tum, C. Mueller, Syn. ii. p. 18?—Viti (Milne!). Also in Sandwich Islands (Gaudichaud), Samoa 
and Tutuila (Powell! n. 89), Norfolk Island (Thompson !), Isle of Pines (Strange! M‘Gillivray !). 
The original specimens gathered by Gaudichaud are rather smaller and more compact than those from 
ae rit r hey may be distin- 
the other localities, but there does not appear to be any definite character whereby they may 
guished from the states so frequently included in collections from Australia, Tasmania, and New Zealand. 
The leayes are entire or irregularly crenulate, 
Trrsus VI. HOOKERIE.A.—Folia inxqualia, seriebus utrinque 2 lateralibus longioribus spe verti- 
caliter planis, seriebus reliquis minoribus appressis, rarius wqualia. Calyptra mitriformis. 
in Viti, viz. ;— tcoHUM: 1, P. rugifolium, C. Mueller, 
ne fe 1 ot yet been found in Viti, viz.;—Pinorricutm: 1, gifolium, 
Syn ee ate oa peista in Herb. Hooker, where also is another specimen from Dickson without 
locality). 
: } 1 im ramosus, Folia binervia vel 
VIII. Hookeria, Sm. Caulis procumbens, vage vel pinnat 
enervia, diversiformia. 
keria); synoica; caules procum- 
i } _ Ann. des Se, Nat. 1845, p. 93 (Hoo S : 
eek ae folia compressa, superiora media oblonga, intermedia ovata, lateralia 
breviter apiculata angulatave, margine apicem Mialilecah crenulata, 
1 idi is IS; heetia 1a 
me | i iori lueidiora cellulis suboblongis 5 peric 
1 j i lal ry iferioribus acutiora, pe 5 
: ee i dunculo elongato levi 
. . ‘nterna ovata latiora; theca mm ped 
i a, inde ligulata acuta, ™ ae ifolia, Sull. Proceed. of the 
a tee Il sensim angustato ; calyptra scabra.—H. oblongifolia, 
ovalis, horizontalis, collo a) 
bentes, subpinnatim. ramos! ; 
ovato-ligulata, omnia apice obtusa 
nervis fere ad apicem continuis dorso superue 
