168 ME. W. mitten's list or SAMOAN MOSSES. 



erecta pellucida ; theca in petlunculo brevlusculo, ovata, ore parvo, 



operculo subulate; peristomium parvuni, dentibus brevibus pallidis ; 



calyptra ramentis appressis earn lougitudine baud excedcntibus pilosa. 

 Hab, Tutuila, forming extensive mats on Bread-fruit trees nearly at tbe 



sea-level. No. 109. 

 Habit that of M. gracile^ but with leaves having a longer pale 



base, their apices complicate, so' as to appear more acute than 



they are in reality. 



M. PowELLii, sp. n. Rami elongati, in csespitibus latis aggregati; folia 



dense inserta, abasi brevi erecta, recurva, divaricata, sensim ad apicem 

 aeutum angustata, nerve rufescente subexcurrente carinata, integer- 

 lima, cellulis basi elongatis pellucidis subrectis dimidium folii longi- 

 tudinis occupant ibus sensim in rotundatas obscuriusculas transeuntibus, 

 pericbajtialia interna breviora lanceolato-subulata pellucida; vaginula 

 pilis paucis brevibus ; theca in pedunculo breviusculo, parva, ovalis, 

 ore parvo, operculo subulate, peristomio dentibus brevibus pallidis ; 

 calyptra ramentis appressis pilosa. 

 Hab. Tutuila, on Cocoa-nut-trees near the sea-level. No. 110, 



This difters from M, gracile (Hook. Muse. Exot. 27) and from 

 M. recurvifolium^ Hook, et Grev,, in its pilose calyptra, and from 

 J/, incurvifolium, Hook, et Grev., in its gradually narrowed acute 

 leaves ; in this last particular it differs also from M, glaucum and 

 M, Beecheyamcm. 



Neckeha, sectio nova Tceniocladium, 



Caulis repens, ramis elongatis liberis pendulis aequaliter foliatis 

 pinnatis. Folia distichacea, nervo plus minus elongate, cellulis 

 in partibus folii exterloribus rotuudatis. Fructus e partibus 

 remotioribus ramorum ramulommque oriens. Theca oblonga, 

 cequalis, pericheetio immersa. Calyptra brevis, plurifida. 



Neckera Lepiniana, Mont. Ann, des Sc. Nat. 1848, p. 107; Bryol. 

 Javan. t. 191. 



Hab. Tutuila, on living trees ; in fruit near Lanutoo, the mountain lake, 



Upolu (2570 ft.). No. 2. 



N. gracilenta. Van den Bosch et Lacoste, Bryol. Javan. t. 192. 

 Hab. Tutuila. No. 96, without fruit. 



Himantocladium. 



Caulis repens, ramia elongatis liberis inferne stipitatis superno 

 pinnatis arbusculo^is fasciculatisve. Folia distichacea, nervo 

 plus minus elongato, cellulis in partibus folii ab insertione 

 ulterioribus rotuudatis firmis. Fructus e ramis ramulisque ^ 



