NKW EXOTIC MOSSES. 1)9 



Capsules seem to have been numerous, but, excepting one, which 

 is damaged, have all been destroyed, leaving only the bare seta? 



remaining. 



Isopterygium acuminatum, n.sp.— Laxe csespitosum, ca- 

 pites demissi, mollis, smaragdino- et lutescenti-virides. Folia 

 distiche compressa, nitentia, ovato-lanceolata, elongata, piliformi- 

 acuminata, basi truncata, marginibus integerrimis, nervis brevis- 

 simis obsoletis; cellulis perangustis elongatis, basilaribus dilatatis, 

 subquadratis luteis ; theca oblonga, horizontal^ inclinata. 



Tasmania; Glen Rae, 1891, Mr. Weymouth. 



A rather larger plant than 7". teuerum [Hypnum) Swartz. from 

 the West Indies, the leaves rather wider, long and slenderly 

 acuminate. Colour bright glossy-»reen find straw-yellow. The 

 opercula have vanished ; the peristome seems normal. 



Acrocladium trichocladium, n. sp. — Rami laxe crcspitosi 



laxe inordinate pinnati, elongati, tenuissime attenuati. Folia dis- 

 tichacea lateraliter compressa, late-oblongn, acumine brevi sub- 

 recurvo terminata, marginibus in tegerr inn's, nervis binis brevissimis, 

 cellulis angustissimis elongatis, ad basin brevioribus latioribus. 



Forming part of the outside of a bird's-nest received from 

 Australia by Mr. Hardy, of Owen's College, Manchester. Other 

 mosses woven with it were Neekera aurescens and Climacium sulcatum. 



Resembling A. politum [Hypnum] Hook. & Wils. in the foliage, 

 but with a very distinct aspect from the long slender branches, 

 tapering to a leugth of three or four inches, giving the plant much 

 the appearance of the Eurhynchium trichocladoii Dozy & Mlk. 

 Bryol. Javan., though very different in structure and essential 

 characters. The foliage is rather less glossy than in A. politum. 



Of fruit there is no appearance. 



Hypnum devexum, n.sp. — Caulis ascendens, pinnatim ramo- 

 sus ramulis acuminatis acutis ; folia caulina erecto-patentia, con- 

 cava, oblongo-lanceolata, acuminata, superne acute serrata; folia 

 ramea brevior, obtuse-acuminata ; nervis brevibus obscuris vel 



obsoletis ; cellule angustae ad angulos basilares dilatate, inflata?, 



lutere, incrassatze; capsula in pedunculo elongato, rubro, fori, 

 ovato-oblonga, forte arcuata, sub ore constricta, brunnea ; operculum 

 pallidior, conicum, acutum. 



Blue Mountains, Australia, Mr. F. Roper. 



General aspect not unlike that of hothecium myurum, or of 

 Hypnum stoloniferum Hook. Musci Exotici, but smaller. Quite 

 distinct from all that group in the nerveless leaves, and apparently 

 allied nearly to H. tanytrichutn. 



Explanation of Plate 320.— Ilomalia densa. Fig. 1, plant, natural size. 

 2, 2, leaves of stem or main axis. 3, 3, "i, leaves of branches. 4, apex of leaf. 

 5. base of same, to show areolation. 



H 2 



