86 THE VOYAGE OF H.M.S. CHALLENGER 



Roxburgh, in Beatson's St Helena Tracts, enumerates this name and " Kyllinga suma- 

 trensis, Willd.," which is Oyp&rus umbellatus. 



Common in Tropical Asia and Africa, and present in Eastern Australia, and probably, 

 Mr Bentnam states, identical with some of the American forms. 



Fimbristylis (Oncostylis) neglecta, Hemsl. (Plate XVIII.) 

 Fimbristylis (Oncostylis) neglecta, Hemsl. 



Pusilla, habitu Isolepidis setaceis, glumis brunneis carinatis utrinque longitudinaliter 

 distincte 4-5 nervosis. 



Ilerba annua (1) ctespitosa, 1-5 poll. alta. Caules filiformi, foliis ssepissime lon- 

 giores. Folia gracillima, flaccida, concavo-convexa, acuta, marginibus leviter scabrida, 

 basi anguste-vaginantia et pilis longis parcissime instructa. Spicules ssepissime solitarise, 

 interdum 2-3 aggregatse, breviter 1-bracteatse, vel ebracteatse, 4-florae ; glumse glabrae, 

 brunnese, nitidse, carinatse, utrinque longitudinaliter distincte 4-5-nervosse, exteriores 

 subaristatse ; stylus trifidus. Nux obtuse trigoua, subturbinata, glabra, interdum mar- 

 morata, transverse recteque minute lineolata, stylis basi incrassata persistente coronata. 



St Helena. — Endemic. On the dry rocks by the side of the side-path opposite High 

 Knoll — Burchell, 15 ; rocky barren soil at an elevation of 1800 feet — Melliss. 



Also in the herbarium of the British Museum, collected by Robertson in 1773. 



Fimbristylis (Oncostylis) lichtensteiniana, Hemsl. (Plate XIX.) 



Fimbristylis (Oncost //lis) lichtensteiniana, Hemsl. 



Scirpus lichtensteinianus, Boeckl. in Linnaea, xxxvi. p. 745. 



Isolepis lichtensteiniana, Kunth, Enum., ii. p. 207. 



St Helena. — Endemic. From the top of the Little Stone Top — Burchell, 16 and 17 ; 

 dry rocks on Diana's Peak, at 2000 feet — Hooker ; common among the rocks on the outer 

 portion of the island — Melliss. 



Scirpus setaceus, Linn. 



Scirpus setaceus, Linn., Sp. PL, ed. 1, p. 49; Benth., Fl. Austr., vii. p. 327; Eeichb., Ic. Fl. Germ., 



t. 301. 

 Isolepis setacea, R. Br., Prodi. Fl. N. Holl., p. 222 ; Kunth, Enum., ii. p. 193; Hook, f., Fl. Tasm., 



ii. p. 88. 

 Isolepis prolifera, Melliss, St Hel., p. 344, vix E. Br. 



Sx HELENA. — Indigenous'? In running water, Swanley Valley and w T et places else- 

 where— Burchell, 13 and 14 ; banks of streams at 2500 feet— Hooker, 275 ; damp places 

 — Melliss. 



Common in extra-tropical regions of the Old World, in both hemispheres. 



This plant must have been abundant in the island in Burchell' s time, for he states 



