Tayl. (/. socia. var., Gottscbe, Lind. et Nees), differing in the paler green colour of the young shoots, in the more delicate foliage, smaller areola;, deeper emargination and clasping leaves.
Plate CLVII. Fig.Y. — 1, plants of the natural size; 2, stipule; 3, leaf: — both magnified.
28. Jungermannia atistrigena, Hook. fil. et Tayl.; laxe casspitosa, caule elongate ascendente subramoso, surculis incurvis, foliis imbricatis subsecundis erecto-patentibus rotundatis convexis integerrimis marginibus recurvis perichaetialibus rotundatis, stipulis majoribus rotundatis, marginibus reflexis integerri- mis bidentatisve, calyce terininali oblongo cornpresso ore subintegTO trigono. J. austrigena et J. cavispina.
Nobis in Lond. Journ. Bot. vol. 3. p. 463 et 466. (Tab. CLVII. Fig. VII. and Tab. CLVIII. Fig. V).
Hab. Hermite Island, Cape Horn; moist banks in woods (fruit). Falkland Islands, along with/. humect ata.
Csespites laxi, lati, pallide flavidi, virides v. atro-brunnei. Caules 2-3 unc. longi, vage ramosi, flexuosi, crassiusculi. Folia arete imbricata, subopposita, antice deeurrentia, siccitate plerumque erispata, recurva ; madore suberecta, appressa, marginibus plus minusve recurvis. Stipules rotundatae, basi utrinque decurrentes, integerrima; v. apice bidentatse, marginibus valde deflexis porrectis, intra margiues posticos foliorum verticaliter compressse. Calyx majusculus, oblongus, latiusculus, trigonus.
A very curious species, and unlike any with which we are acquainted. The habit of the Falkland Island specimens when dried, is, owing to their having grown in water, so peculiar, that we regarded them at first as a different species, which we described as /. cavispina, from the reflexed margins of the closely imbricating stipules, giving a grooved appearance to the back of the stem. The calyx is that of a LopJwcolea, from which group the presence of stipules and the entire leaves remove it.
Plate CLVII. Fig. VII. Falkland Island state, (sub nom. /. cavispina). — 1, plant of the natural size ; 2, front, and 3, back view of stem and leaf; 4, stem and stipule; 5 and 6, stipides : — magnified. Plate CLVIII. Fig. V. (Hermite Island state). — 1, plant of the natural size; 2, lateral, 3, back, and 4, front view of stem, leaf, and stipule ; 5, stem and stipule ; 6 and 7, stipules : — magnified.
29. Jungermannia palustris, Hook. fil. et Tayl. ; caule elongate disperso flaccido ramoso, foliis laxe imbricatis erecto-patentibus tenuissime membranaceis rotundatis valde concavis marginibus incurvis medio longitudinaliter undulatis integerrimis, stipulis majoribus ovalibus cymbiformibus integerrimis. Nobis in Lond. Journ. Bot. vol. 3. p. 464. (Tab. CLVII. Fig. VIII).
Hab. Hermite Island, Cape Horn; on the borders of an alpine lake, growing in the water.
Caules inter Muscos aliasque Hepaticas demersas ascendentes, sparsi, 3 unc. longi ; ramis erectis, flaceidissimis. Folia tumida, varie incurva, medio plerumque plica longitudinali notata. Stipula valde concavse, subimbricatae. Allied to the British J. Doniana, and to the /. iweolutifolia, Mont. (v. infra), but very distinct from both. The leaves resemble those of Hypnum coclilearifolium, Schwaegr.
Plate CLVII. Fig. VIII. — 1, plant of the natural size ; 2, front view of stem, leaves, and stipules ; 3, back view of ditto : — magnified.
30- Jungermannia involutifotia, Mont, in Gottsclie, Neeset Lindo. Spi. Hep. p. 81. Yoy. au Pole Snd, Bot. Crypt, p. 260.
Hab. Strait of Magalhaens; on tufts of Hypnum fluitans : M.Hombron.
The nearest ally to this plant is /. notopliylla, nobis.
