134 xcix. HYDROPHYLLACE.E. (C. B. Clarke.) [Hydrolea. 



Bat. Mag. ii. 193, t. 26 ; Wight HI. t. 167, and Ic. t. 601 ; Choisy in DC. 

 Prodr. x. 180 ; Dalz. $ Gibs. JBomb. Fl. 170. H. javanica, Blume Bijd. 725. 

 Nama zeylanica, Linn. ; JRoxb. Fl. Ind. ii. 73. Nama, Linn. FL Zeyl. 49, t. 2. 

 Rheede Hort. Mai. x. 28. 



Throughout INDIA, ascending to 4000 ft., in wet places ; abundant in rice swamps. 

 DISTRIB. S.E. Asia, Malaya, and Australia ; Tropical Africa and America. 



Stems 3-18 in., procumbent, branched, with the inflorescence patently viscidly 

 hairy, or (in the Ceylon form) nearly glabrous. Leaves 2 by \ in., narrowed at the 

 base. Racemes 1-2 in. ; bracts j | in., narrow ; pedicels - ^ in. Sepals % in. 

 Corolla-segments ^ in. Filaments dilated at the base, or nearly filiform. Capsule % in. 



ORDER 0. BOHAOINEJE. (By C. B. Clarke.) 



Herbs, shrubs or trees, often hispid or scabrous. Leaves alternate, very 

 rarely opposite, exstipulate, mostly entire. Power* usually in dichotomous 

 scorpioid cymes, rarely solitary and axillary. Calyx inferior, 5-, rarely 6-8- 

 toothed or -lobed, usually persistent in fruit. Corolla gamopetalous, often with 

 scales in the throat, rarely 4-6-lobed, imbricate (rarely twisted) in the bud. 

 Stamens as many as the corolla-lobes, alternate with them, upon the corolla- 

 tube. Ovary superior ; cells 2, 2-ovuled, or 4-1-OYuled ; style terminal or from 

 between the ovary-lobes, long or short, stigma capitate or 2-lobed, rarely the 

 style twice bifid ; ovules suberect from the inner basal angle of the cell. Fruit 

 drupaceous or dividing into 2-4 nutlets. Seeds erect or oblique, testa mem- 

 branous, albumen fleshy copious sparing or ; embryo straight or curved, 

 radicle superior. Species 1,200 ; throughout the world. 



TRIBE I. Cordieae. Trees or shrubs. Style terminal on the entire ovary, 

 twice bipartite. . Drupe 4-1-seeded ; albumen ; cotyledons plicate longitudin- 

 ally. 

 Calyx-teeth very short, irregular 1. COBDIA. 



TRIBE TI. Ehretieae. Style terminal on the entire ovary, .simple, bi- 

 partite, or styles 2. Drupe with 2 2-celled, or 4 1-celled pyrenes ; or of 4-1 

 nuts. 



Trees or shrubs. Style 2 -fid 2. EHEETIA. 



Prostrate herb. Styles 2 3. COLDEXIA. 



Virgate shrub. Style 1, stigma capitate 4. RHABDIA. 



TRIBE III. Keliotropieae. Style terminal on the entire ovary, de- 

 pressed-conic at the apex, or with a horizontal ring below the stigmas. Fruit 

 as of Ehretiece. 



Shrubs, often scandent. Style short, shortly 2-lobed ... 5. TOUENEFORTIA. 

 Herbs. Style dilated at the apex or above the base ... 6. HELIOTEOPIUM. 



TRIBE IV. Boragece. Herbs. Style simple or bifid, rising from between 

 the ovary lobes (except in Trichodesma}. Nutlets 4, rarely 3-1 by suppression 

 (2 in Rochelia) ; albumen 0. 



STJBTRIBE I. CYNOGLOSSE.E. Nutlets attached to a convex or conical car- 

 pophore, scar continued to the apex of the nutlets which are often depressed, 

 produced, or saccate at the base. 



* Fruiting calyx enlarged enclosing the nutlets. 

 Anthers conically connivent, lanceolate, subexsert .... 7. TRICHODESMA. 



