10 



KEY TO SEEL) PLANTS. 



Pistil 1 and 



One-celled, the styles or stigmas often more than one. 



Sepals caducous; petals 4 or 6, twice as many as the sepals . . . 



Papaverace.e, p. 205. 

 Sepals persistent or at least not caducous. 



Acaulescent plants; petals 8 to 16; sepals 4 to 8 



Lewisia, p. 184. 



Caulescent plants. 



Petals 5; fruit a capsule; leaves simple, entire. 



Sepals 2; styles 3 Calandrinia, p. 185. 



Sepals •"). the 2 outer smaller and bract-like; style 1 . . . 



Cistace^e, p. 233. 

 Petals 1 or 2: sepals about 4; fruit a berry; leaves compound. 



Aetaaa, 202. 



More than 1-celled. 



Petals 5; sepals or calyx-lobes 5. 



Stamens monadelphous. jointed to the base of the petals; sepals 



not distinct, valvate; leaves alternate 



Malvaceae, p. 236. 

 Stamens disposed in 3 to 5 indistinct bunches; sepals distinct, 

 imbricate; leaves opposite . . Hypericace.e, p. 235. 



Petals 10 to 20; sepals 5 to 12; aquatic herbs 



Xuphar. p. 192. 

 2. Stamens hypogynous, 10 or fewer. * 

 Pistils more than 1, distinct, and 



Exceeding in number the sepals or petals 



Ranuxculace.e, p. 193. 



Of the same number as the sepals or petals 



Ckassulace.e, p. 264. 

 Pistils more or less united around a central axis, elastically separating 



when ripe as 1-seeded carpels; petals 5 



Geraniacej£, p. 245. 

 Pistil 1, the styles or stigmas sometimes more than one. 

 Corolla irregular. 



Papilionaceous; stamens 10, di- or mon-adelphous, rarely dis- 

 tinct; fruit a legume Leguminos.e, p. 288. 



Petals 5, one with a spur; sepals 5, auricled; stamens 5; fruit a 



1-celled capsule Violaoe.e, p. 230. 



Petals 4; stamens 0. 



Sepals 4; fruit a silique; annual; some species of 



Streptanthus, p. 213. 



Sepals 2; petals in 2 dissimilar pairs; perennial 



Dicentra, p. 200. 

 Petal 1; calyx o-toothed; stamens 10; leaves pinnate; shrub . . 



Amorpha. p. 293. 



Corolla regular, 

 Ovary 1-ceUrd. 



Anthers opening by uplifted valves; petals 6. in whorls of 3; 



stamens 6; fruit a berry or capsule 



Berberida* k.k. p. 203. 



