Page:The Botany of the Antarctic Voyage.djvu/116

94 basin fissae, foliorum inferiorum 1-1| una longte, coriacea;, sulcata?, politse, nitida?, pallide straminese ; folionun superioruni elongatse, teretes, profunde striata;, ad colliun subincrassata; j Vujula scariosa, late ovata, obtusa, fimbriato- lacera. Panicula nutans, ramosa, 4-5 una longa, ovato-lanceolata, 1-J- unc. lata, multiflora ; raclii gracili, curvato, tereti, la?vi ; rands liic illic subverticillatis, gracillimis, flexuosis, inferioribus uncialibus, suberectis. Spicules obovnto-oblongae, i una longa;, pedicellate;, pedicello sparse piloso. Gluma bivalvis ; valvae sequales, scarioso-membranaceae, floseulis A longiores, lanceolatse, longe acuminata;, dorso convexse, glaberrima;, micantes, marginibus versus apices saepe laceris, nervo medio tenui, vix scaberulo, duobus lateralibus infra medium evanidis, viridibus. Flosculi straminei, fusco-purpureo picti, breviter pedicellati, pedicello nudo v. obscure eiliato. Florcm masculortjm palea inferior late ovato-oblonga, concava, quinquenervis, subsericea, apicem versus pilosa, superne bifida, inter segmenta acuta aristata, dorso sub arista ciliata, basin versus fere nuda, ad marginem pilis subcurvatis breviuscuHs ciliata; arista scabrida, recta v. subtorta, ultra glumas vix producta: palea superior inferiori subaequilonga, oblonga, apice bifida, binervis, bicariuata, carinis ciliatis. Stamina 3; filamentis elongatis ; antheris exsertis, stramineis. Flosculi hermaphroditi palea inferior ut in fl. masc. sed glabrior, superne tantummodo pilosa, ad apicem subacuta, in aristam brevem setiformem producta, dorso superne ciliata, marginibus nudis: palea superior lineari-oblonga, concava, infra apicem emarginatum subpubescens, nervo medio tenui extus scaberulo. Squamnla 2, ovata;, acuminata;. Stamina 2 ; antheris minoribus quam in fl. masc. Ovarium ellipticum, utrinque attenuatum. Styli 2, basi approximati ; stigmatibus plumosis. Caryopsis non visa.

This is a handsome and very distinct plant, with more the habit of growth of the European species than of the larger and more leafy H. redolens or antarctica. It is very abundant in some parts of the islands now under consideration, always growing in exposed situations, where its graceful habit and nodding panicles are a great ornament to the dreary regions it inhabits.

Plate LII. Fig. 1, spikelet ;fi(j. 2, florets removed from the same ; fig. 3, a male floret ;fig. 4, a hermaphrodite floret ; fig. 5, upper palea from the same ;fig. 6, squamula ; fig. 7, ovarium, styles and stigmata from the same : — all magnified.

Tribe AGKOSTLDE^E, Kuntli.

2. AGROSTIS, L.

§. I. Moris swperwris rudimenta nidla.

1. Agrostis leptostachi/s, Hook. fil. ; panicula gracillima effusa pauciflora, ramis elongatis versus apices floriferis, glumarum valvis sequilongis lineari-lanceolatis marginibus superue carinisque ciliatis flosculum sessile longe superantibus, palea inferiore late ovata basi nuda apice truncata quadrifida clorso pilosa infra medium aristata, arista glumas superante, palea superiore nulla (an minima?), setula nulla.

Hab. Campbell's Island ; growing amougst tufts of other plants near the sea, scarce.

Radix fibrosa. Culmi graciles, erecti, foliosi, 6-8 una longi. Folia longe vaginantia, erecto-patentia, 5-7 unc. longa, planiuscida, demum involuta, anguste Hnearia, 1-2 lin. lata, striata, sub lente scabriuscula, luride viridia, opaca. Vagina 2-3 unc. longee, cylindracese, diametr. pennse corvina;, usque ad basin fissa;, profunde striata;, scabriuscula;, pallide virides v. strarninese, ore contracto; ligula elongato-oblonga, truncata, scariosa, lacera. Panicula effusa, sub 3 unc. longa, parce ramosa ; rachi ramisque capillaribus, sub lente scabridis. Spiculce pedicellata;, pedicello gluma sub breviore, superne incrassato, sidcato. Glumarum valvae -i una longa;, flosculum inclusion subduplo longiores et ultra, lineari-lanceolatae, dorso acute carinatae, carina argute ciliato-denticulata, viridi. Flos- culus brevissime pedicellatus, pedicello glaberrimo. Palea late ovato-oblonga, sparse pilosa, apice truncata, 4-dentata, quinquenervis nervo medio infra medium in aristam desiiiente ; arista glumani subosquante, gracili, scabrida, basi curvata v. geniculate.