10 KEY TO SEED PLANTS. 



Pistil 1 and 

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



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



Papaverace^, 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 Oalandrinia, p. 185. 



Sepals 5, the 2 outer smaller and bract-like; style 1 

 CiSTACETE, p. 233. 

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



Actasa, 202. 

 More than 1-celled. 



Petals 5; sepals or calyx-lobes 5. 



Stamens monadelphous, jointed to the base of the petal^; sepals 



not distinct, valvate; leaves alternate 



Malvace^), p. 2;i(). 

 Stamens disposed in 3 to 6 indistinct bunches; sepals distinct, 

 imbricate; leaves opposite . . Htpebicacb^, p. 235. 



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



Nuphar, p. 192. 

 2. Stamens hypogynous, 10 or fewer. 



Pistils more than 1, distinct, and 



Exceeding in number the sepals or petals 



EanunculacBjE, p. 193. 



Of the same number as the sepals or petals 



Obassulaoe^, p. 264. 

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



when ripe as 1-seeded carpels; petals 5 



GbkaniacejB, p. 245. 

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

 Corolla irregular, 



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

 tinct; fruit a legume Lbquminosje, p. 288. 



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



1-celled capsule ViOLArE.E, p. 230. 



Petals 4; stamens (i. 

 Sepals 4; fruit ii silique; annual; some species of . 



Streptanthus, p. 213. 



Sepals 2; petals in 2 dissimilar pairs; perennial 



Uicentra, p. 209. 

 Petal 1; calyx 5-toothed; stamens 10; leaves pinnate; shrub. . 



Amorpha, ]i. 293. 

 Corolla regular. 

 Ovary l-celleil. 

 Anthers openini;- by uplifted valves; petals 6, in whorls of 3; 



stamens 6; fruit ii liorry or capsule 



Beruekiiiace.k. p. 203. 



