CXLIX. NAIADACE^. 583 



Tribe II. — Aponogetonete. 



Aponogeton, Tliunb. 



monostachyus, Linn. — ■ " Kapabina" of Bloomfield River 



natives. 

 elongatus, F. v. M. 



Tribe III. — Potame^s. 

 Potamogeton, Lin n . — Pond-weed. 



Section I. 

 natans, Linn. 



tricarinatus, F.v.M. (Fig. 563.) 

 Tepperi, A. Bennett. 

 javanicus, Hassk. = P. tenuicaitlis, F. v. M. 



Section II. 



perfoliatus, Linn. 



var. minor. Bail., n. var. — Stems flat, narrow. Leaves 

 almost orbicular, the largest seen about 8 lines diam., 

 very dense near the ends of the branches. Peduncles 

 about 1 inch long. Spikes dense, 3 to 5 lines long. 

 Hab. : Tambourine Mountain (/. H. Simmonds). 

 crispus, Linn. 

 obtusifolius, Mert. ct Koch. 



Section III. 



pectinatus, Linn. — Fennel Pondweed. 



Ruppia, Linn. 



maritima, Linn. 



Tribe IV. — Zostere/e. 



Zostera, Linn. — Grass- wrack. 



nana, Rotli. — Dugong Grass. 



Tribe V. — Naiade.e. 

 Naias, Linn. 



major, Allionl. 



■var. intermedia, A. Br. 

 tenuifolia, R. Br. 

 Browniana, A. B. Rendle, Trans. Linn. Soc. 2nd ser. Bot. 



iv. (1899) 420. 

 graminea, Delile. 

 Leichhardtii, Magnus. 



Hab.: Australia (Lcichhardt) , (Magnus); Rendle (? Queens- 

 land). 



