526 Lxxxiv. LENTiBULAKiEiE. [Uiriciilam. 



Victoria. Lngoons on the Yarra, GoulLurn river, and near Oineo, F, MneUer, 



mania. Derwent riverj R. Brown ; pools near the S. Esk river, neai" Laiiiiceston, 

 Gtinn, 



^V. Australia. Avou river, Preiss, n. 1875. These, as vvell as some of the speci- 

 mens from the other colonies, are without llower, and therefore in some measure douhtful; 

 1)ut those from Omeo, as well as Brown's and several of the northern ones, are in flower or 

 fruit, and agree perfectly with those from tropical Asia, where the species has a wide range. 



3. U. exoleta^ R, Br, Prod. 430, Nearly allied to TT. jlexnom, Lut 

 very mncli smaller and more slender. Floating submerged steins capilhuy, 

 Mitk exceedingly fine filiform leaves, not much divided, interspersed with 

 minute vesicles^ the largest of whicli are scarcely \ line diameter, and in 

 marshy places the linear-filiform leaves are nearly entire. Scapes filiform, 1 

 to 3 in. long or rarely more, bearing 1, 2 or 3 small yellow flowers. Bracts 

 very obtuse, not produced below their insertion. Pedicels slender and erect 

 in fruit as well as in flower. Calyx-segments broad, very obtnse, i to f line 

 long in flower, slightly enlarged under the fruit but not exceeding the capsule. 

 Corolla not above 3 lines long to the end of the spur and sometimes scarcely 

 2 lines, the lips nearly equal, both broad; spur narrow-conical, obtuse, hori- 

 zontal or turned upwards, as long as or longer than the lower lip. Stigma 

 sessile. Capsule membranous. Seeds peltate, bordered by a thin irregular 

 wing.— A. DC. Prod. viii. 7 ; F. Muell. Fragm. vi. 162 ; TJ. diantlia, Ecem. 

 and Schult. ; Oliv. in Joarn, Linn. Soc. iii. 176, not of A. DC. ; Wight, Ic 

 t. 15G9. 



N. Australia. Vietoria river and swamps uear sea range, F. HtueJIer, 

 Queensland, Gracemerc, Boaman; near Rockhamptou, 0' Shanes?/. 

 N. S, Wales- Nepeau river, R, Brown. 



The species Las a wide range in tropical Asia. 



2. Scaj)es erect. Leaves radical or none. 



4. U. albifiora. It. Br. Prod. 431. Scapes filiform, i to 1 in. long, 

 bearing a single small white flower. Leaves none at the time of flowering. 

 Bract minute, not produced at the base. Pedicel very short. Calyx-seg- 

 ments I line lonfr at the time of flowering, | line when in fruit. Corolla 

 not 2 lines long, the upper lip small, emarginate, lower lip broad, shortly 3- 

 lobed; spur descending-, as long- as the lower lip.— A. DC. Prod. viii. 15- 



Queensland. Endeavour river, BanLs and Solander. Perhaps a white-flowered vanety 

 of U.jn/gwaa, but both of these minute species require further investigation from better 

 specimens. 



5. U. pygmaea, R. Br. ? Prod. 433. Scapes filiform, 1 to 3 in. high- 

 Leaves radical, narrow-linear or none. Plowers small, yellow, solitary or 2 

 distant cues ou rather long filiform pedicels. Bracts obtuse, not produced at 

 the base. Calyx-segments obtuse, about 1 line long. Corolla : upper hp 

 not twice as long as tlie calyx, obovate or orbicular, entire; lower lip larger, 

 the middle lobe convex, fully 2 lines across, " the lateral lobes linear, divari- 

 cate ; spur ascending, as long as the lower lip. Capsule membranous, the 

 fruiting pedicel not reflesed.— A. DC. Prod. viii. 16. 



Queensland. Cape Grafton, Banks and So/ander j Brisbane river, W. HIH. 

 _ The Banksian specimens are minute, and the colour of the flower is not ?iven ; tbeir iden- 

 tity with Hill's ycllow-fiowered specimens (determined by F. Mueller) is'therefore lu some 

 measure nnoertain. 



