Seiaphila.'] oLxviii. teiuridej:. (J. G. Hooker.) 559 



Stem 4-8 in. j bracts about -^^ in. Flowers alternate, opposite and whorled, 

 mono- or dioeeioue, pedicel i-1 in. ; male i in. diam., fem. j in. Anthers sessile on 

 a thick disk. 



4. S. khasiana, Hook.f. in Gen. Plant, iii. 1003 ; perianth, segments 

 4-5 ovate-acuminate, male fl. with 3 subulate pistillodes, style ventral 

 filiform much longer than the ovary. 



Khasia Hills, alt. 4000 ft., J. D. B. ^ T. T. 



Plant red -purple. Stem 8-6 in., filiform or capillary, flexuous, simple or branched, 

 naked or with a few scales, fem. much the stoutest. Mowers dioecious, racemose, 

 male -^ in. diam., fem twice as large and longer pedicelled; bracts of male minute, 

 of fem. J in., subulate; perianth papillose. Anthers very large, globosely 4-lobed, 

 white, dehiscence transverse ; pistillodes erect, subulate, purple. Carpels many, 

 papillose. Achenes reniformly obovoid, pericarp cellular, purple. Seed, conform to 

 the pericarp ; testa chartaceous, yellow-brown, transversely strongly reticulate ; 

 nucleus oblong, cellular, homogeneous, white. — Described from drawings I made in 

 the Khasia. 



Order CLXIX. AX.ZSiaACEH:. 



Marsh or water plants of various habit. Leaves radical, entire. Flowers 

 regular, uni- or bisexual. Perianth segments 6, 2-seriate, outer (sepals) 

 herbaceous, inner petaloid rarely 0. Stamens 6 or more, hypogynous or 

 perigynous ; anthers erect, basiflxed, 2-celled, slits lateral or dorsal. Car- 

 pels 3-6 or more, 1-celled, sessile or stipitate on a flat or raised receptacle ; 

 style short, long (or 0), snbterminal or ventral, stigma, simple; ovules 1 or 

 more, insertion various. Fruit of small achenes or follicles. Seeds small, 

 exalbuminous ; embryo straight or conduplicate.^Genera 12, species about 

 60, cosmopolitan. 



Tribe 1. AlismaoEjE. Fruit of 3 or more achenes. 



Flowers bisexual. Stamens 6-9. Receptacle flat . . 1. Alisma. 



Flowers polygamous. Stamens 6. Receptacle flat . . 2. LiMNOPHYToy. 



Flowers unisexual. Stamens many. Receptacle globose or 



oblong 3. Sa&ittaria. 



Flowers monoecious. Stamens 3 4. WiSNBBlA. 



Tribe II. BtjtomEjE. Fruit of follicles. 



Petals marcescent. Embryo straight 5. BuTOHUS. 



Petals deciduous. Embryo hippocrepic . . . .6. Butomopsis. 



1. £. ZiXSnXA, Urn. 



Scapigerous herbs. Leaves lanceolate, cordate, or sagittate. Flowers 

 bisexual in umbelled or panicled whorls, white or pink. Sepals 3, her- 

 baceous, persistent. Petals 3, membranous, deciduous. Stamens 6 or 9, 

 filaments filiform. Carpels few or many ; receptacle small ; stigma small, 

 terminal ; ovule solitary, anatropous, basilar. Fruit of few or many 

 compressed or turgid, coriaceous or hard achenes. Seeds erect, testa mem- 

 branous ; embryo hippocrepic. — Species about 10, cosmopolitan. 



1. A. Plantagro, iimM. ; leaves linear ovate-lanceolate or subcordate 

 5-7-nerved, fruiting sepals spreading, achenes membranous compressed, 

 style slender deciduous. Kunth Enum. iii. 148 ; JBeichb. Ic. Fl. Oerm. vii. 

 t. 67 ; Micheli in DC. Monog. Fhan. iii. 32 ; Boiss. FT. Orient, v. 9 ; Wall. 

 Cat. 4998. P A. intermedium, Oriff. ex Voigt Hort. Suburb. Calcutt. 680. 



