346 HEXANDRIA MONOGYNIA. 



172 ACORUS. Spad. cylindric, , covered with flowers ; cor. 6-petaled, 

 naked ; stigma sessile, very minute ; caps. 3-celled. 



173. JUNCUS. Perian. 6-leaved, glumaceous ; caps, superior, 3-celled, 

 3-valved ; cells many-seeded ; seeds attached to a partition in the 

 middle of each valve. 



174. LUZULA. Perian. Cleaved, glumaceous; caps, superior, 3- 

 celled, 3-vaived ; cells 1-seeded, valves without partitions. 



TRIGYNIA. 



175. VERATRUM. Polygamous. Calyx 0; cor. 6-parted, expand- 

 ing ; segments sessile, without glands ; stamens inserted upon the 

 receptacle ; caps. 3, united, many-seeded. 



176. HELONIAS. Cor. 6-parted, spreading, without glands; styles 3, 

 distinct; caps. 3-celled, 3-horned, cells few-seeded. 



177. TRIGLOCHIN. Perian. 6-Ieaved, deciduous ; leaflets concave ; 

 3 of the leaflets inferior and more calycine; stamens 3 6, very 

 short; an th. turned outward; stigma nearly sessile, adnate; caps. 

 3 6, united above by a common receptacle and axis, generally sepa- 

 rating at the base, 1-seeded, not opening. 



178. GYROMIA. Calyx 0; cor. 5-parted, revolute; Jil. and anth. dis- 

 tinct ; styles ; stig. 3, filiform, and divaricate, united at the base ; 

 berry 3-celled ; cells 5 6-seeded ; seeds compressed, 3-sided. 



179. TRILLIUM. Calyx 3-leaved; cor. 3-petaled; stigma sessile; 

 berry superior, 3-celled ; cells many-seeded. 



180. RUMEX. Perian. 6-leaved ; nut triquetrous, covered by the 3 

 interior valviform leaves of the perianth ; stigma many-cleft . 



TETRAGYNIA. 



181. SAURURUS. Flowers on an ament or crowded spike; scales 

 1-flowered; cor. 0; anthers adnate to the filaments; caps, each 1, or 

 rarely 2-seeded. 



POLYGYNIA. 



182. ALISMA. Calyx 3-leaved ; pet. 3 ; caps, numerous, 1-seeded, 

 not opening. 



MONOGYNIA. 



Specie.. 157 ' LEONTICE. 



L. thalictroides : leaves bi-triternate ; leaflets 2 3-lobed ; flowers 

 paniculate, from the centre of the leaves. 



