laxam subeffusam involucratam involucris breviorem dispositis 2-floris, squamis disticliis carinatis exterioribus dorso scaberulis, setis hypogynis 4-6 rigidis scabridis nuce longioribus. (Tab. CXLVI.)
Hab. South Chili ; Cape Tres Montes, C. Darwin, Esq.
Culmi pedales. Folia ut in priore sed duplo longiora. Panicula 2-3 unc. longa, parce ramosa. Livolncri foliola 2 caeteris longiora, paniculam superantia. Spicules unc. longa?, ovato-oblonga;, compresses, biflorae, inferiores lonoius et graciliter pedicellatae. Squama sub 6, atro-castanese, concavse, ovatae, acuta; v. sub-acuminatae, nitidaa, inferiores vacuae. Stamina 3. Seta hypogyna 4-6, rigidse, scabridee. Nux breviter stipitata, late ellipticn, angolis costatis, stylo elongato stigmatibus 3 capillaribus exsertis tenninato.
One of these two species of Chatospora may be considered the Antarctic representative of the Sclicenus nigricans of Europe. Neither of them appears to inhabit a high south latitude, though the C. Antarctica, ascending to an elevation of 2,000 feet in South Chih, might have been expected to grow at the level of the sea in Fuegia.
Plate CXLVI. Fig. 1, spikelet ; fig. 2, the same with the lower scales removed ; fig. 3, achaenium : — all magnified.
5. CARPHA, Banks et Sol.
1. Carpha schainoides, Banks et Sol. MS.; culmis caespitosis teretibus laevibus, foliis breviusculis culuio i brevioribus semiteretibus, spiculis sub 2-floris in paniculam paucifloram involucratam dispositis, setis hypogynis 6 ad apicem plumosis. C. schcenoides, Banks et Sol. MS. in Bill. Banks, cum icone. (Tab. CXLVIII.)
Hab. Southern parts of Tierra del Fuego ; Good Success Bay, Banks and Solander ; Hermite Island, Cape Horn, /. B. II.
Culmi 6-8-unciales, cacspitosi, basi fohati, radices plurimas fibrosas crassas demittentes. Folia plurima, basi vaginantia, laevia, vaginis pallidis, lamina lineari-subulata, acuta, semiterete, super anguste canaliculata. Panicula involucro ~ brevior. Spicula sub 3, pedicellatae, pedicello compresso infra squamas ancipiti. Squama sub 5, 1 unc. longae, lineari-oblongas, acuminata;, 2 inferiores vacuae, dorso carinatse, carina obscure scabenda, superiores dorso convexse, floriferas, supremo minore vacuo. Seta hypogyna 6, plana;, lineares, utrinque ciliato-phunosas, longitudine squamas sequantes, basi in tubum brevem cyathiformem connata;. Stamina 3, fauce tubi perigonii inserta;. Nux obovato-oblonga, stipitata, 3-costata angulis incrassatis, stylo coronata. Stylus persistens, trigonus, angubs serratis, inferne attenuatus, apice acuminatus, vaHdus, rigidus. Semen solitarium, erectum, nuci confonne ; raphe et chalaza prominentes ; embryo parvus, octohajdrus, basi albumine inclusus, extremitate cotyledonari attenuata.
The Carpha schomoides of the hills of Fuegia, and the C. alpina, Br., of the loftier mountains of Tasmania, are two closely-albed representative species, both apparently very rare and local plants. C. alpina is replaced further north, in Australia, by the C. deusta, Br., a native of the colony of Port Jackson, but hitherto no South American species except the one here described has been noticed. These three form together a very distinct group, as Mr. Brown has indicated (Prodi-, p. 230).
Plate CXLVIII. Fig. 1, spikelet;^//. 2, floriferous and empty scale ; fig, 3, achasnium, filaments, and seta;; fig. 4, base of setae and filaments ; fig. 5 and 6, achaenium ; fig. 7, seed ; fig. 8, same, cut open ; fig. 9, embryo : — all magnified.
6. CAREX,[1] L.
1. Carex ovalis, Good, in Linn. Trans, vol. ii. p. 148. Engl. Bot. t. 306.
Var. 0, minor, Brongn. in Duperrey, Voy. Bot. p. 149. C. Macloviana, B'Urv. in Mem. Soc. Li hi, Paris, vol. v. p. 599.
- ↑ The species of this genus, and of Uncinia, have been determmed and described by my kind friend Dr Boott.
