LXXXVI. HYDEOPHyLLACE.£, 197 



or solitary axillary or terminal flowers. Calyx inferior, 5-partite. 

 Corolla gamopetalous, o-lobed; lobes imbricate, rarely contorted. 

 Stamens 5, inserted on the corolla-tube and alternate with its lobes ; 

 filaments filiform ; anthers ovate, oblong or lineai*. Disk hypogyuous, 

 more or less conspicuous or 0. Ovary superior, 1-2-celled ; " ovules 

 2-many, anatropous or amphitropous ; styles 1 or 2. Capsule 2-valved 

 or dehiscing irregularly. Seeds minute, oblong, globose or angular ; 

 albumen fieshy ; embryo minute. — Disteib. Chietly American ; only 

 i3 or 4 species in the Old World ; species 150. 



1. HYDROLEA, Linn. 



Herbs, rarely undershrubs. Leaves alternate, entire ; stipules 0. 

 Flowers blue, in short terminal racemes or cymes, regular, 5-merous. 

 Calyx divided nearly to the base ; segments lanceolate. Corolla rotate 

 or campanulate, 5-cleft ; lobes imbricate. Stamens 5, inserted on the 

 short corolla-tube ; filaments equal, filiform, usually dilated at the base ; 

 anthers sagittate. Ovary completely 2-celled ; ovules many in each 

 cell ; styles 2, distinct ; stigma capitate. Capsule globose or ovoid, 

 dehiscing septicidally by 2 valves or sometimes irregularly. Seeds many, 

 with fleshy albumen, minute. — Distbib. N. & S. America, Tropical 

 Africa, East India, Malaya, Australia ; species about 14. 



1. Hydrolea zeylanica, Vahl, Symh. Bot. v. 2 (1791) p. 46. 

 Annual herb ; stem (J-2U in., usually decumbent and often rooting at 

 the lower nodes, glabrous, some\Ahat succulent ; branches short, slender. 

 Leaves 1-2| by g-§ in., lanceolate or linear-lanceolate, acute, glabrous, 

 base tapering ; petioles very short. Mowers numerous, in racemes on 

 short lateral branches ; pedicels i-j in. long, glandular-hairy ; bracts 

 leafy. Calyx ^ in. long, glandular-hairy, enlarged in fruit ; tube scarcely 

 ■^-^ in. long ; segmc'nts lanceolate, acute. Corolla of a fine blue with 

 darker veins, deeply divided, \-\ in. long ; tube about ^ in. long ; lobes 

 ovate, acute. Stamens exsertecl ; filaments dilated at the base ; anthers 

 sagittate. Styles 2, distinct, spreading. Capsule -^ by -^ in., ovoid- 

 oblong, enclosed in the enlarged persistent sepals. Seeds numerous, 

 minute, oblong. Fl. B. I. v. 4, p. 133 ; Grab. Cat. p. 127 ; Dalz. & 

 Gibs. p. 170 ; Wight, Icon. t. 601 ; Trim. Fl. Cevl. v. 3, p. 191 ; 

 Woodr. in Journ. Bomb. Nat. v. 12 (1898) p. 169; Watt, Diet. Econ. 

 Prodr. v. 4, p. 315. — Elowers : JVov.-Dec. Vern. Po^jti ; Keriti. 



Margins of tanks and damp places throughout the Presidency. Konkan : margins 

 of tanks, Graham, Dalzdl ^ (xibson ; Mahad, Woodrow. Deccan : Eohe, Gangaram ! 

 Gujarat : Bulsar, Woodrow \ — Distrib. Throughout India in wet places and rice- 

 swamps ; Ceylon, Malaya, Tropical Africa, America, and Australia. 



Oedbe LXXXVII. BORAGINACE.a:. 



Herbs, shrubs, or trees, very rarely climbing. Leaves usually alter- 

 nate ; stipules 0. Inflorescence normally a 2-chotomous cyme with 

 helicoid branches, sometimes a simple unilateral raceme or spike or an 

 irregularly 3-chotomous panicle (rarely of 1-2 flowers in the axils of 

 the leaves) ; flowers hermaphrodite (rarely polygamous), usually regular ; 

 bracts leafy, small or 0. Calyx inferior, sometimes persistent ; tube 



