Page:The Botany of the Antarctic Voyage.djvu/171

Campbell's Islands] laxe inibricatis erecto-patentibus obovatis obtusiusculis apices versus parce crenato-dentatis basi angustatis, margine auteriore recurvo decurrente, calyce elongato-obovato basi nudo 4-5-alato ore contracto denticulato. (Tab. LXIII. Fig. IV.)

Hab. Lord Auckland's group ; on moist rocks, near the summits of the hills.

Caspites subdensi, 2-3 unc. diametro, pallide straminei v. virescentes. Caules i unc. longi, subrigidi, sirapliciusculi. Folia inferiora integra v. interduiu unidentata, superiora apices versus plus minusve irregulariter crenatodentata, omnia conformia, basi angustata antice decurrentia, apices versus rotundata, cellulis distinctis. Calyx terminalis, subpedicellatus, erectus, basi attenuatus, foliis caulinis vix duplo longior, alis 4-5 angustis planis v. rugosis, duobus oppositis interdum opacis, ore subtubuloso, crenato v. 4-fido, tandem fisso, foliis perichsetii propriis nullis.

In external appearance this species very closely resembles the former, the leaves are, however, more loosely cellular, and in the structure of the calyx it widely differs. The Peruvian PI. gymnocalycina, Lind., (Spec. Hep. p. 48. 1. 10) has the calyx equally naked below and of a similar outline, but it is smooth and furnished with only two very obscure ribs, its foliage also is perfectly dissimilar and the whole plant is much larger. The wings of the calyx are formed out of deep folds of its membrane.

Plate LXIII. Fig. IV. — 1, a specimen of the natural size; 2, calyx and upper leaves; highly magnified.

16. Jungermannia fiiscella, Hook. fil. et Tayl. ; caule subesespitoso ascendente curvato vage ramoso, foliis laxe imbricatis patulis late oblongo-rotundatis basi obliquis subdeflexis siccitate verticalibus v. subcrispatis, margine anteriore recurvo subdecurrente, posteriore in lobidum latum producto denticulato, calyce terminah obovato truncato deflexo fohis perichsetialibus breviore. (Tab. LXIII. Fig. V.)

Hab. Lord Auckland's group ; in moist boggy places.

Caspites late diffusi, 3-4 uncias diametro, luride olivacei v. fusco-atri. Caides 1^-2 unciales, superne curvati, subgraciles, saepe reflexi, siccitate una cum foliis subcrispatis subsquarrosis rigidi. Folia latiuscula, dense cellulosa, opaca, areolis subpunctiformibus, luce transmissa pallide fusco-obvacea, marginibus integris v. plerumque margine posteriore denticulato, supremis interdum omnino sub lente denticidatis.

In many respects this species resembles Montagne's P. pusilla (Voy. au Pole Sud, Bot. Crypt, tab. 16. f. 3), a species, judging from the plate, founded upon a young and imperfect specimen, and which we think exists in the Herbarium of the Expedition of a larger size. It differs from this in the deep serratures of the leaves, in the habit and colour and above all, in belonging (according to the figure) to a section having the leaves coadunate at the base. In the form of the foliage our plant more nearly resembles the P. hemicardia, nobis, but is very different in the disposition of the leaves on. the stem. A few calyces were observed ; they are very uniform, shorter than the pericha:tial leaves and concealed by them ; some are proliferous, the stem being produced through their axis and exserted : this abnormal state has been observed in /. Lyoni, Tayl., and in several species of mosses, as in Conomitrium Berterii, Montagne (Cryptog. BohV. t 3. f. 4).

Plate LXIII. Fig. V. — 1, a specimen of the natural size ; 2, 3, 4, leaves ; magnified.

(6. Jungermannia, Wees.)

17. Jungermannia colorata, Lehmann, in Limma, vol. iv. p. 366. Gottsche, Nees et Lind. Syuops. Hepat. p. 86.

Hab. Lord Auckland's group and Campbell's Island ; in various situations from the sea to the hill tops, abundant.