382 FLORA VITIENSIS. 
Tribus VI. Brrex.—Theca ut plurimum clavata, levis. Peristomit interni processus cayinati, infegri vel 
rarissime divist. Folia levia, Calyptra dimidiata. 
* Flores in caule primario vel in innovationibus terminales. 
+ Folia undique inserta. 
L. Lerrosromvs, R. Brown, Linn. Soe. Trans. vol. x. p- 180. Peristomium simplex, internum, mem- 
indivisa. 
ete L. macrocarpum, Hedw. Muse. Frond. vol. ii. t. 10 (Bryum) ; caules inferne tomento rufo intertexti ; 
folia patentia, oblongo-spathulata, obtusa, eariuato-concava, margine superne revoluta, integerrima, nervo 1 
pilum brevem simplicem vel elongatum ramosum excurrente, cellulis hexagonis parietibus angustis utriculo 
anguloso contracto repletis ; perichetialia conformia, margine latius revoluta, nervo longius excurrente, 
magis ramoso; theca im peduneulo elongato ovali-elliptica, erecta, operculo parvo conico-hemisphzrico.— 
Tahiti (Banks and Solander'!) ; Norfolk Island (Allan Cunningham! Herb. Hooker).—Specimeus smaller 
than those from New Zealand, All the species of this genus in the large size of their capsules, and in 
their general appearance, correspond with Brywm, but differ in the firm and dense areolation of their leaves. 
The genus is peculiar to the sslands of the Pacifie Ocean, including Australia, lasmania, and New Zealand, 
and the western and extreme southern shores of S. America. 
Il. Bryvm, Linn, Peristomium duplex, internum sepius perfectum, rarius imperfectum—A_ very 
extensive genus, all the species of which are generally conspicuous for the large size of their elliptical 
pyriform or clayate, erect or more frequently pendulous capsules. A great difference exists among the 
species in the size and substance of the leaves, but they appear to be so intimately connected by 
 ntermediate states that it is difficult to define groups which, at first sight, appear sufficiently remote to form 
natural sections, 
* Dicranobryum, C, Mueller, Syn. vol. i. p. 309.—Theca erecta inclinatave. Peristomium internum 
incompletum, 
1. B. coarctatum, C. Mueller, Syn. vol. i. p.812; Dozy et Molk. Bryol. Javan. t. 115; synoicum; caulis 
humilis ; folia comalia parva, ovato-lanceolata, acuminata, nervo crassiusculo rufo excurrente, margine in- 
tegerrima inferne recurva, cellulis parvis oblongis ; pedunculus elongatus; theca oblonga, inclinata yel 
erecta, collo levi vel tuberculis prominulis distorto, operculo conico acuminato, annulo magno, peristomio 
externo dentibus angustis, interno processibus abbreviatis angustis in membrana alte exserta impositis, 
ciliis nullis—Friendly Islands, Vavau and Lefuka (Harvey !) ; Samoa, Tutuila, on stones and walls (Powell! 
n. 16).—This species was first deseribed as dioicous, and is also so described and figured in the ‘ Bryologia 
Javanica’ above referred to, but Javan specimens from Jungbubn have the antheridia present in the fertile 
flower in the same manner as in the specimens from Polynesia; some European species which have synoicous 
fertile flowers produce also male flowers only on branches arising from the same stem. The affinity of this 
small species is with B. atropurpureum, Web. et Mobr, and with this it accords in the colour of its foliage 
aud fruit, as well as in having the neck of the capsule distorted; but in the defective internal peristome it 
agrees with some Indian and tropical American species. All these species differ from those of the group 
wehe has been named Brachymenium, in being always found growing on the earth, and not on the bark of 
Tees, 
** Webera, Hedw.—Theca inclinata pendulaye. Peristomium internum processibus ciliisque plus 
minus perfectis. Folia nitida, immarginata. 
2, B. nutans, Hedw. Muse. Frond. vol.i, t, 4; synoicum; caulis humilis ; folia inferiora patentia lan- 
ceolata, neryo sub apice evanido, margine superne serralata, cellulis ubique squalibus elongatis, comalia 
duplo longiora lineali-lanceolata, interiora minora angustiora argutius serrulata, nervis percurrentibus ; 
pedunculus elongatus; theea nutans vel pendula, sporangio breviter ovali, collo subsequilongo, stcca cras- 
siusculo corrugato subplicato, operculo convexo acuto ; peristomium breviusculum, internum ciliis cobsr- 
entibus.—St. Paul's Island (Milne!) ; Isle of Pines (Strange!)—These specimens appear to possess 00 
difference in aspect, size, or structure from the usual European form. 
**= Eccremothecium, Mitt. Linn. Soc. Journ. 1868.—Theca inclinata pendulave. Peristomium internum 
processibus ciliisque sxpius perfectis. Folia rarius nitida, sepius limbo marginata. 
3. B. megalostegium, Sull, Amer. Expl, Exped. 1859 9. t. 7.; dioicum, d i it 
. xpl. : ,p. 9. & 7.; , dense cespitosum ; foltis 
ovato-lanceolatis, costa excurrente breviter cuspidatis, a ee integerrimis plauis; satanta clayata, 
pyriformi-neurva, nutante vel pendula, late annulata, pachydermi macrostoma; operculo permagno, sub- 
nemispherico, apiculato.— Hawaii, forests on the sides of Mauna Loa (American Expedition !) ; Raoul Island, 

