328 CIV. OEOBANCHACEiE. (J. D. Hookei.) [BoscJiniackia.^ 



very stout, | in. Seeds chaff-likej strn ™- •i'^™-; testa hyaline with large reticulations. 

 — This differs widely from the N.E. Asiatic B. ylalra in its ranch larger size, the 

 flowers being twice as large, and the fruit three times. The capsule of B. glabra 

 is not longer than the bracts, and its seeds are ellipsoid, -^tj in. long, with a close testa. 



Obdeb CY. XiE17TXBUX.A.RX£a:. (By C. B. Clarke.) 



Herbs, aquatic or in wet places. Leaves radical rosulate, or capillary 

 multifid or obsolete. Scapes l-oo -fld. ; bracts small or 0. Flowers her- 

 maphrodite, purple, yellow, or white. Calyx inferior, 2-5-lobed. Corolla 

 2-lipped, spurred ; upper lip usually smaller, entire or emarginate, lower 

 8-5-lobed. Stamens 2, attached to the base of the corolla, alternate with 

 the lobes of the lower Up, filaments broad curved ; anther-cells 2, ovate, 

 transversely confluent. Ovary superior, globose, 1-celled ; style short, 

 stigma unequally 2-lobed; ovules very many, on a free basal placenta, 

 anatropal. Capsule globose, 2-4-valved, or irregularly breaking up. Seeds 

 numerous, small, exalbuminous. — Species 180, in all cKmates. 



Calyx deeply 2-lobed, lobes entire or minutely toothed . . 1. Uteiculabia. 

 Calyx 4-5-lobed, more or less 2-lipped ... .... 2. PiireuicTOA. 



I. VTRXCVXiARZA, Linn. 



Herbs, floating or terrestrial. Leaves many-partite with capillary 

 segments in the floating species, entire in the erect species ; minute bladders 

 frequently added. Scapes simple or branched ; racemes few- or many- 

 fld. ; pedicels bracteate and often 2 bracteolate. Calyx 2-partite ; lobes 

 entire or nearly so, often enlarged in fruit. Corolla 2-lipped ; upper lip 

 entire or emarginate, lower larger 3-6-lobed; spur curved or straight. 

 Filaments broad; anthers ovate, 2- or sub-1-celled. Style short, stigma 

 unequally 2-lobed. Seeds ellipsoid or obovoid, scrobiculate or glochidiate, 

 rarely reticidate or comose. — Species 150, extending nearly throughout the 

 world. 



The numerous small scapose species have evanescent rosulate radical leaves on 

 very short creeping branches ; but there are specimens from which it would appear 

 that, when some of such species grow in running water, they may produce elongate 

 branched stems, longer linear leaves, and reduced leaves with bladders. 



* Stems floating, leaves submerged divided into capillary segments 

 mostly interspersed with bladders ; braoteoles 0. 



t Peduncles bearing about the middle a cluster of oblong vesicles. 



1. IT. stellaris, Linn.f. Suppl. 86; flowers pedicellate yellow, calyx- 

 segments ovate enlarged in fruit, corolla-spur shorter than the lower lip 

 more or less curved pubescent or glabrous. Soxb. Cor. PI. ii. 42, 1. 180, 

 and PI. Ind. i. 143 ; Wall. Cat. 6400 ; Wight in Hook. Pot. Misc. iii. 91, 

 Suppl. t 27; A. PC. Prodr. viii. 3; Wight Ic. t. 1567; Dalz. Sf Gibs. 

 Bomb. Fl. 135 ; Boiss. Fl. Orient, iv. 3. U. maorooarpa. Wall. Cat. 1494. 



Throughout India, in rice-swamps and jheels.— Disteib. Malaya, S.E. Asia, 

 N. Australia. 2fearly all Africa. 



Leaves with bladders. Peduncles 2-8 in., erect out of the water, glabrous ; whorl 

 df vesicles J-1 in. long, formed of the inflated bases of reduced branches with often 

 subfoUaceous tips. Pedicels 1-8, J in., thickened, usually deflexed in fruit. Corolla 



