174 ME. D. OLIVER, JUN., ON THE 



proportion of the spur of the corolla ; the comparative proportions 

 of the calyx-lobes, &c. The sections of A. De Candolle employed 

 in the ' Prodromus,' of questionable utility in their general ap- 

 plication, are almost useless in the apportionment of the Indian 

 species. 



Finally, I may be allowed to express my conviction, that in the 

 investigation of the development and general morphology of the 

 ' Bladder-worts,' there is a wide field for extended observation ; 

 and I believe that a monograph of the genus, thoroughly worked 

 out in respect to these, would be, although a work of much labour 

 and difficulty, a most valuable contribution to science. 



Utrictjlaeia, L. 



§ I. ^ca/pi ex axi demerso, segmentis multisectis plus minus capil- 

 laceis scepissime aciculiferis, per floo^escentiam persistente. 

 JBractecB solitarice (i. e. hracteolce nullce). 



A. Scopus vesicis inflatis in verticillum unicum dispositis instructus 

 (vide obs. sub U.Jlexuosa, infra.). 



1. U. stellaris, L.; Wall. Caf. 6400; A.BC. Prodr. viii. 3; Wight, 



Icones, 1567. 

 hoc. Per totam Indiam tropicam. Moradabad, hb. Hook. ! Rohil- 



khand, Edgew. \ Concan, Stocks ! Tanjore et Orissa, Wight ! Car- 



natica, Katnig. &c. ! Khasia, hb. Griff. ! Forma macrocarpa, Nipalia, 



Wall. ! &c. 

 Distrib. Nubia, Kotschy ! Africa aust.. Dreg. ! (Nov. Hollandia bor., 



Mueller ?) 

 Scapi supra v. infra medium vesicis circiter 3-5 lanceolatis oblongis 



V. ovato-oblongis apicem versus filamentis capillaribus plus minus 



ramosis instructis in verticillum saepissime dispositis. Pedicelli apice 



saepe incrassati fructiferi patentes v. deflexi capsulam aequantes v. 



excedentes. 

 Corollce labio superiore ovato v. rotundato obtuso calyce saepe duplo 



longiore, calcari brevi saccate obtuso v. alabastro emarginato corollae 



racters), a pair of very small laterally disposed lamina?, which I call hracteolce ; 

 these, in certain species, almost equal the bract in length and proportions, ex- 

 cepting that in the case of those having bracts volute at the base, the bracteoles 

 are, I think, not to the same extent free below their attachment. In none of 

 the Indian Utricularice^ however, do the bracts and bracteoles assume anything 

 like the development of those of the singular section ' Orchidioides^ (A. DC), 

 a South American group of the genus, in which they are relatively very long, 

 attaining a length of from :^ to f in. 



