Page:The Botany of the Antarctic Voyage.djvu/433

Falklands, etc.] 5. AndrEjEa mutabilis, Hook.fil. et Wils., rid. Part 1. p. 119. pi. lvii. f. ii.

Var. y, subsecunda ; foliis laxioribus inferioribus secundis.

Var. 8. uncinata ; foliis dissitis falcato-secundis.

Hab. Falkland Islands ; both varieties, abundant.

The var. /3. of this species is a Lord Auckland's group and Campbell Island plant.

6. Andee^a laxifoUa, Hook. fil. et Wils.; caulibus laxe csespitosis parce ramosis, foliis lanceolato-subulatis obtusiusculis concavis enerviis ramuliuis falcato-secundis caulinis erectis subsecundis laxe imbricatis, perichsetialibus elongatis ovatodanccolatis convolutis, tbeca exserta ovato-oblonga. (Tab. CLI. fig.IV.) Var. /3. minor ; theca subexserta.

Hab. Hermite Island, Cape Horn ; not rare, on moist rocks in the higher parts of the Island. Var. /3. on rocks near the sea.

Caulis vix uncialis. Folia ramulorum conferta, falcato-sccunda, luteo-viridia ; caulina dissita, majora, vix secunda, subamplexicaulia. Florescentia monoica: fios masculus primo terminalis, folia perigonialia rotundo-ovata, acutiuscula, concava. Antheridia. 6. Paraphyses mnnerosa 1, duplo longiores. Theca siccitate turbinata, basi pallida.

Plate CLI. Fig. IV. — 1, a tuft of the natural size ; 2, 3, 4, and 5, leaves ; 6, theca : — magnified.

7. ANDEEiEA subulata, Harvey ; vid. Part 1. p. 1 1 9. pi. lvii. f. i.

Var. /3. riffida ; foliis minus falcatis crassioribus luridis.

Hab. Hermite Island, Cape Horn, and the Falkland Islands; not uncommon.

The Auckland and Campbell Island variety differs slightly from the above.

Subgen. Aceoschisma, Hook. fil. et Wils. [Theca cylindracea, e basi ad medium et ultra indehiscens, apiceiu versus tantum in valvulis 4 vel 8 fissa ; — an genus proprium ?)

8. Andeej;a (Acroschisma) Wilsoni, Hook, fil.; caule laxe csespitoso elongato ramoso, foliis ramulorum undique patentibus squarrosis spathulato-lanceolatis obtusiusculis caulinis erectis laxe imbricatis ovato-lanceolatis basi angustatis amplexicaidibus omnibus enervibus concavis marginibus inflexis, perichretialibus elongatis elliptico-oblongis convolutis, theca exserta cylindracea apicem versus fissa. (Tab. CLI. fig. III.)

Hab. Hermite Island, Cape Horn ; on maritime rocks near the spray of rivulets, rare.

Caides scsquiunciales, graciles, erecti, per intervallos breves innovantes, subdichotomi, steriles vage ramosi, rami patentes. Folia ramulorum lanceolata, basi subamplexicaulia, erecta, deinde patida, squarrosa, apice subin-curva, obtusiuscula, lateribus inflexis, luteo-viridia, caulina majora, erecta, infra medium repente angustata, flaves-centia, enervia, areolis majusculis elongatis. Florescentia monoica: antheridia circiter 11, paraphysibus numerosis longissimis. Theca elongata, maxima, interne integra, badia, apice in valvulis 4 vel 8 fissa.

Allied to Andreaa laxifolia, but differing in the remarkable capsule and also in the form of the leaves, which do not taper gradually from the base, but are widened near the middle.

Plate CLI. Fig. III. — 1, a plant of the natural size; 2, branches; 3, young theca, Sec; 4. leaf; 5, mature theca; 6, perichsetial leaf: — all magnified.

2. SPHAGNUM, L.

In addition to the former remarks on the structure of Sphagnum, we would observe, that the spirally lined cellules of the leaves do not constitute the proper parenchyma. The cellules, which contain the chlorophyll, are