470 LTII. II.VLOJLVCilDACE.T. 



Oedeb LIU. HALORAGIDACE^. 



Herbs often aquatic. Leaves alternate, opposite or wborleil, often 

 pectinately pinnalifid wlien submerged ; stipules 0. Flowers herma- 

 phvodite or unisexual, usually minute, often incomplete, axillary, solitary 

 or fascicled, sessile or pedicelled, the nodes between tbe floral whorls 

 soraetimes developed. Calyx superior ; tube adnate to tbe ovary ; lobes 

 of tbe limb 4 or 0. Petals 4, epigynous, or 0. Stamens 8, 4 or 1, 

 epigynous in tbe bisexual flowers. Ovary 4-, 2-, or 1-celled ; ovules 4 

 (1 in Jllpi^uris), pendulous; styles equal in number to the cells; 

 stigmas papillose or plumose. Fruit suiall, dry or drupaceous, Avith 

 cells as in tbe ovary, iudebiscent or separating into carpels. Seeds 

 4 or 1. — DiSTiiiB. Cosmopolitan ; genera ; species 80. 



1. MYRIOPHYLLUM, Linu. 



Glabrous aquatic herbs. Leaves entire, dentate, serrate, or pectinately 

 pinnatifid, often whorled. Flowers monoecious or hermaphrodite, small, 

 sessile or nearly so, in the axils of floral leaves or in nearly naked 

 spikes. Male flowers : Calyx minute ; tube short ; limb 2-4-fid 

 or 0. Petals 2-4. Stamens 2-8. Female floweks : Calyx-tube 

 deeply 4-furrowed ; limb or of 4 minute lobes. Petals minute or 0. 

 Ovary inferior, 4- or rarely 2-celled ; ovule solitary in each cell, 

 pendulous ; styles 2 or 4, short ; stigmas plumose. Fruit 4-furrowed 

 or separating into 4 or 2 carpels. — Distiub. Cosmopolitan ; species 15. 



1. Myriophyllum intermedium, DC. Pro'l v. 3 (1828) p. 69. 

 An aquatic herb ; stems long, the upper portion floating on the surface. 

 Leaves ^-l^ by -^V'ttt ^^^-f ^iltfi'iifi-te, solitary or in fascicles of 2-3, 

 sometimes in whorls, linear, acute, entire or serrate; tbe submerged 

 pectinately pinnatifid. Flowers snbsessile, axillary. Fruit oblong, 

 -Jf^ in. long, with rounded and minutely scabrous ridges and shallow 

 furrows between them, uUimatel}'' separating into its component carpels. 

 Fl. B. I. V. 2, p. 433 ; Woodr. in Journ. Bomb. Kat. v. 11 (189S) 

 p. 636. Mijnopluillum tetrandnon ('?), Grab. Cat. p. 76 ; Dalz. & Gibs, 

 p. 99 (not of Roxb.). IlalorcKjis oligantha, W. & A. Prodr. p. 338 ; 

 AVight, Icon. t. 1061 {not of Arn.). 



Peccan : Mahablesliwar, side of tlie late, Coolr I, WnocJrow. S. M. Country : 

 Belgauni, Ritchie, 11 55 1 Kanar.v : Ilulikal (N. Kaiiara), Talbot, 1353! — Distkib. 

 India (W. Peninsula); Malaja, Australia, New Zealand, S. America. 



Order LIY. RHIZOPHORACEiE. 



Trees or shrubs usually quite glabrous ; branches terete, swollen at 

 the nodes. Leaves opposite and stipulate (rarely alternate and ex- 

 stipulate), usually coriaceous ; stipules interpetiolar, very caducous. 

 Flowers in axillary cymes, racemes, panicles or spikes, usually herma- 

 phrodite, surrounded at the base by connate or cupuliform bracts, 

 or ebracteate. Calyx-tube more or less adnate to the ovary, rarely 

 free ; calyx-lobes 4-14, valvate, persistent. Petals isomerous with 

 the calyx-lobes, but usually shorter than them, entire, emarginato, 

 2-fid or lacerate. Stammis usually twice as many as the petals, often 



