53. Jungermannia atro-virens, Hook. fil. et Tayl. ; caule gracili erecto disperso ramoso subtus flagellifero, foliis parvis patentibus subdistantibus triaugulari-rotundatis apice inaequaliter bifidis segmentis acutis integerrirnis, cellulis parvis punctiformibus rnargiueni versus inferiorem inajoribus, stipulis niinutis transversis semi-rotundatis tripartitis segmentis acutis.
Hab. Lord Auckland's group ; creeping through tufts of Bicrana and other mosses, in the woods and on the lulls, not uncommon.
Caules 1-2 unciales, graciles, saepe solitarii, vage ramosi, rigidi, erecti, interdum subflexuosi, crassiusculi, olivaceo-brunnei. Folia pro niagnitudine caidis parva, vix imbricata, verticabter patentia, oblique ovato-rotundata v. subtriangularia, bifida v. bidentata, segmento inferiore majore, apicibus plerumque inciuvis, palhde brunnea v. flavofusca, subopaca, densa ; cellulis rnanifeste punctiformibus. Stipulce tridentatae, dentibus acutis v. obtusis.
A very distinct species, which can scarcely be confounded with any other, of a wiry habit though particularly graceful and slender ; this character, together with the great disproportion between the breadth of the leaves and stem, and the unequal cellules which are so large towards the inferior margin as almost to resemble a nerve, will readily distinguish it from any other. A similar disposition of the cellules is seen in M. inaquilaterum, Nees.
54. Jungermannia nutans, Hook. fil. et Tayl. ; caulibus crassiusculis caespitosis subsimplicibus erectis incurvis apicibus saepe nutantibus, foliis deusis arete inibricatis patentibus valde concavis late ovatis apice inaequaliter bifidis margine subintegris camosiusculis laxe cellulosis, stipulis erectis late ovato-rotundatis apice bifidis v. subdentatis, stolonibus subbasilaribus ascendentibus ad apices demivm foliosis. (Tab. LXV. Fig. VIII.)
Hab. Lord Auckland's group ; in moist places on the ground, and at the roots of trees.
Caules caaspitosi, simplices, erecti, incurvi v. nutantes, ut in /. tenaci, Grev., crassiusculi, caraosuli, cellidosi, albidi v. pallide vh'escentes, ad apices siccitate sagpe nigricantes, sidjunciales. Folia valde concava, bifida, segmento inferiore minore, cellulis saepe margines versus prominulis aquosis, ad medium folii majoribus.
Very unlike any of the other species of this genus, though in some respects approaching the J. tenax, Grev., in which the stems are branched and the leaves midtifid. The whole plant is of a singularly flaccid or flabby consistence, formed of watery or fleshy cells, a good deal s imil ar to those of/, notopliylla, nobis (vid. ante).
Plate LXV. Fig. VIII. — 1, specimen of the natural size; 2, portion of branch; 3, stipule: — magnified.
(12. Schisma, Bumort.)
55. Jukgeemaknia Scolopenclra, Hook. ; Muse. Exot. t. 40. Scliisma Scolopeudra, Nees et auct.
Hab. Lord Auckland's group and Campbell's Island; on the hills, abundant; often resembling a Racomitrium in its habit of growth.
(13. Mastigophora, Nees.)
56. Jungermannia hirsuta, Nees.
Hab. Campbell's Island.
This we have compared and found to agree with authentic specimens of /. hirsuta, Nees, but we are not aware where that species is published.
(14. Trichocolea, Nees.)
57. Jtjngermannia mottissima, Hook. fil. et Tayl.; laxe caespitosa, implexa, caule ascendente bipinnatim ramosissimo, foliis confertis alteruis patentibus e basi lata dichotoma multifichs laciniis capillaribus sti-
