A COLLECTION OF MOSSES. 179
very near, but differs in more distant, longer and narrower leaves, more acute and without any border.
F. firmus Mitt, is still nearer, but is a taller plant, with more acute leaves, very stout nerve, and very strong border on the vaginant lamina. No fruit is present on Mitten's type. It is possible that the present plant may ultimately have to be united with it. It appears to have been gathered in a more or less aquatic situation.
Fissidens karwarensis. Dixon sp. nov. (fig. 4).
E minoribus generis caulis 3-4 mm. altus, plurijugus, frondem angustam, atro-viridem sistens. Folia inferiora parva, superiora multo majora, laxiuscule disposita, deplanata, sicca fortiter falcato-incurva, fragilia, oblongo-lanceolata, acuta ; lamina vaginans ad dimidiam partem folii producta vel paullo ultra ; ea foliorum inferiorum plerumque immarginata, foliorum superior um atque praecipue Roralium fortiter limbata, limbo aliquando perlato ; lamina apicalis et dorsalis elimbata, minutissimecrenulata, lamina dorsalis ad folii basin producta ibique plerumque rotundata ; costa angusta, pellucida, subpercurrens, vel in apiculum egrecliens. Areolatio perdensa, e cellulis minutissimis papulosis instructa. Seta brevis, 2-4 mm., tenella ; theca minuta, anguste elliptica, collo defluente, erecta vel leniter inclinata, sub ore constricta operculo conico-rostrato, acuto.
Dioicus videtur ; flores. haud visi.
Hab. Stones, Karwar (6368), Bole of coconut palm in irrigated spice garden, Shiggaon (3485).
Near to F. ceylonensis Mitt, but that has -still more opaque and obscure cells, narrower leaves, and dorsal lamina narrowed to base. F. Treubii Fleisch, also is very similar, but the leaves there are much longer, narrower and closer together.
The border is rather remarkable, being entirely absent from most of the leaves, but in the uppermost leaves of the fertile stems well marked and even unusually broad. Even there however it is highly variable and may be wanting.
§ Aloma.
Fissidens immutatus Dixon sp. nov. (fig. 5).
Caules aggregati, vix caespitosi, rufescentes, simplices vel parce ramosi, vix 1 cm. alti, multijugi, fusco-rubri. Folia, flavo-virides, laxe disposita, complanata, patentia, sicca hand mutata vel minime depla- nata, frondem pulchram subnitidam sistentia, rigida, oblonga, breviter acuminata vel acuta, subintegra, immarginata ; lamina vag. vix ad medium folium attingens, apice plerumque obtuso ; lamina dorsalis ad folii basin producta, ibique crenulata, rotundata ; costa valida, pellu- cida, subflexuosa, in surnmo apice evanida, Areolatio perpellucida,
