Page:The Botany of the Antarctic Voyage.djvu/506

470 Hab. Hermite Island, Cape Horn, and the Falkland Islands ; abundant.

Ccespites 4-5 unc. longi, basi e ramulis perplurirnis implexis intricati. Rami primarii circumscriptione lineari-obovati, plerumque quaterni, secundarii ramulique ultiini oppositi, patentes. Utriculi semper oppositi, ramulo bracteaefonni duplo longiores.

In habit and general appearance resembling the European E. granulosus ; but abundantly different in the constantly opposite sessile conical capsules or utricles, which are generally subtended by a minute raniulus half their own length.

16. MESOGLOIA, Ag.

1. Mesogloia linearis, Hook. fil. et Harv.; vireseens, fronde circumscriptione lineari, caule gracili indiviso v. rarius diviso rarnis brevibus ornato, ramis altemis crebris abbreviatis flexuosis erecto-patentibus, ramulis subsecundis. Nobis in Lond. Town. Bot. vol. iv. p. 251.

Hab. Hermite Island, Cape Horn; rare.

Tronies 4-6 unc. longi, vix a lin. diametro, pallide flavo-vkescentes. Caulis gTacilis, indivisus v. basi ter quaterve divisus, rarius medium versus in ramos 2 prnnarios fissus. Rami perplurimi, A— i xmc. longi, flexuosi, interdum basin versus caubs nudi v. ramulis paucis aucti. Ramuli secundarii plerumque e margine inferiore seu exteriore ramorum orti. Peripheric filamenta moniliformia, e substantia gelatinosa vix exserta.

Probably the representative of the European M. vermicularis, from which it may be at once distinguished by the ramification.

17. DELESSEKIA, Lamowx.

1. Delesseria sanguined, Lamourx. Engl. But. 1. 1041.

Var. |3. lancifolia; fronde elongata anguste lineari-lanceolata ligulatave utrinque angustata.

Hab. Hermite Island, Cape Horn ; on rocks, abundant near the shore, also dredged up in five or six fathom water.

Hitherto known only as an inhabitant of the seas of the Northern hemisphere ; where its range is not wide. In the southern it appears to be confined to the extreme south of America, flourishing in the deep bays which indent the coasts of Fuegia. Some specimens are altogether similar to those of European growth ; others, of which we have constituted the var. lancifolia are larger, longer, sometimes abnost a foot long, much narrower, and more attenuated at both ends. It is a very handsome variety.

2. Delesseria Davisii, Hook. fil. et Harv.; caule cartilagineo alato, lamina profunde pinnatifida v. pinnata, laciniis pinnisve cultrato-lanceolatis obliquis costatis penninerviis, nei'vis alternis, demum inter nervos alterne v. secunde lacerato-laciniatis, lacinulis erecto-patentibus costatis. Nobis in Loud. Jburn. Bot. vol. iv. p. 52. (Tab. CLXXV.)

Hab. Hermite Island, Cape Horn ; abundant. Falkland Islands, Berkeley Sound, Dr. Lyall.

Frons 5-7-unciabs, alata v. latiuscule marginata, basi in caulem brevem abrupte attenuata, circumscriptione late ovato-rotundata, in lacinias perplurimas simplices v. partitas distichas costatas divisa, rosea, membranacea. Lachiia plerumque secus marguiem exteriorem oblique ad costain fissse, A-A unc. lata?, obtusfe v. subacutaB. — Inter B. alatam et D. sanguineam quasi media, sed utraque sat diversa.

This is perhaps most closely albed to D. sanguinea, from which it may be distinguished by the alternate nervation and dividing of the frond. The J), alata, which it is also near, differs in the texture and colour of its frond. No fruiting specimens were found.