Page:The Botany of the Antarctic Voyage.djvu/466

430 25. Jungermannia vascidosa, Hook. fil. et Tayl. ; flaecida, tenerrima, csespitosa, caule procumbente subrarnoso, foliis imbricatis secundis erectis rotundato-quadratis, basi Into decurrente, margine integerrimo undulato, stipulis rnajoribus ovatis concavis bifidis, segmentis lanceolatis integerrimis v. basi utrinque unidentatis. Nobis in Loud, Journ. Bot. vol. 3. p. 461. (Tab. CLVII. Kg. IV).

Hab. Falkland Islands ; on vret rocks near the sea, abundant.

Ceespites late extensi, 2-4 unc. lati, atro-virides. Caulk 2 unc. longus, parce ramosus. Folia laxiuscule imbricata, integerrirna ; niarginibus subinflexis undulatis, superiore subgibboso, hiferiore longe decurrente; substantia tenerrima, flaecida, eellulis majusculis. Stipula conspicuse, caulem amplectentes ; segmentis late lanceolatis, erectis, sinu obtusiusculo.

This has a good deal of resemblance to the J. cordifolia, Hook., of Britain, but the presence of stipules will at once distinguish the Antarctic plant. In many respects it has an equal claim to be considered a Lopkocolea as a Jungermannia ; on the whole, however, we incline to retain it in the latter genus.

Plate CLVII. Fig. IV. — 1, plant of the natural size ; 2, portion of branch, with leaf and stipule ; 3, stipule — both magnified.

26. Jungermannia erinacea, Hook. fil. et Tayl.; tenerrima, csespitosa, caule suberecto ramoso, rami's erecto-patentibus, foliis imbricatis patentibus flaccidis ciliato-dentatis apice obtusis plus minusve profimde emarginatis, lobo inferiore ovato-rotundato superiore bbero ovato adpresso stipubs majoribus late rotundatis irregulariter ciliato-dentatis integris bifidisve. Nobis in Lond. Journ. Bot. vol. 3. p. 462. (Tab. CLXI. Fig.IV).

Hab. Falkland Islands ; on moist rocks near the sea.

Pallide olivaeeo-ftava. Caspites laxi, extensi. Caidis 1-1—2 unc. longus, fiaccidus, ramosus, ramis subfastigiatis. Folia laxe imbricata, tenerrima et flaecida sed areolis minutis, apice plemmque bifida, sinu lato rotundato, ciliis marginalibus basi latiusculis sa?pe repente in apicem articidatam desinentibus. Stijmhe rotimdatse, ambitu cdiata?, lobulo minore folii majores, bifidse.

A very beautifid species, allied to our /. diplophylla (Pt. 1. p. 152. t. 64. f. iv) ; where fructification is unknown, they together appear to form as natural a genus as any which has been proposed out of Jungermannia, and differ from Scapania in the presence of stipides. The present is readily distinguishable from /. diplopliylla by the separation of the two lobes of the leaf, by their emarginate tips, by the larger and closer ciliation of then- margins and by the less deeply but more frequently divided and broader stipules.

Plate CLXI. Fig. TV. — 1, plant of the natural size ; 2 and 3, portion of stem, leaf, and stipule ; 4, stipule : — magnified.

27. Jungermannia. humectata, Hook. fil. et Tayl. j laxe ceespitosa, flaecida, caule erecto parce ramoso, foliis remotis tenuibus erecto-patentibus undulatis basi amplexicaubbus ovato-rotundatis emarginatis bifidisve segmentis obtusiusculis subdivaricatis integerrimis v. utrinque dentatis, stipubs foliis consimilibus sed minoribus. Nobis in Lond. Journ. Bot. vol. 3. p. 462. (Tab. CLVII. Fig. V).

Hab. Falkland Islands ; on wet sand by the sides of mountain-streams.

Csespites laxi, extensi, interne atro-brunnei; ramis paucis, erectis, pallide fusco-olivaceis. Folia alterna, remotiuscida, basi caulem totam fere amplectentia, late obovato-oblonga v. rotundata, bifida, sinu acuto v. obtuso.

Possibly from its rather anomalous locality, an altered state of some other species, though we cannot say of what. In the wet place of growth, erect habit and general outline of the leaf, it resembles the British /. Lyoni,