210 DODECANDRIA MONOGYNIA. [CL. XI. 



3. S.saginoides. Smooth Awl-shaped Spurrey. Leaves a\vl-shaped, 

 awnless, smooth ; flower-stalks solitary, smooth, much longer than 

 the leaves. Root fibrous : the whole plant smooth : stems de- 

 cumbent at the base, jointed : leaves united at the base : flowers 

 white : seeds not bordered. Perennial : flowers in June : grows on 

 the higher mountains in Scotland : frequent. Eng, Bot. vol. xxx. 

 pi. 2105. Eng. FL vol. ii. p. 339. 721. 



4. subuldta. Fringed Awl-shaped Spurrey. Leaves opposite, 

 awl-shaped, awned, fringed ; flower-stalks solitary, much longer 



than the leaves, slightly hairy. Leaves terminated by a long 



bristle : seeds encircled by a black line. Perennial : flowers in 

 July and August : grows on sandy heaths : frequent. Perhaps a 

 variety of the preceding. Eng. Bot. vol. xvi. pi. 1082. Eng. FL 

 vol. ii. p. 339. 722. 



CLASS XI. DODECANDRIA. 



Plants bearing Flowers with Twelve Stamens. 



Order I. MONOGYNIA. One Pistil. 



1. A'SARUM. Corolla none. Calyx three-cleft, superior. Cap- 



sules six-celled. 



2. LY'THRUM. Petals six. Calyx twelve-cleft, inferior. 



Order II. DIGYNIA. Two Pistils. 



3. AGRIMO'NIA. Petals five. Calyx five-cleft. Seeds in the 



bottom of the hardened calyx. 



Order III. TBIGYNIA. Three Pistils. 



4. PvE'SEDA. Petals in many segments. Capsule one- celled, 



gaping. 



Order IV. TETRAGYNIA. Four Pistils. 



(Tormentilla officinalis. Cl. XII.) 



Order V. DODECAGYNIA. Twelve Pistils. 



5. SEMPER VI'VUM. Petals twelve. Calyx with twelve divisions. 



twelve. 



DODECANDRIA. MONOGYNIA. 



1. A'SARUM. ASARABACCA. 



Calyx superior, of one leaf, bell-shaped, leathery, coloured, 

 permanent, in three deep segments. Corolla none. Filaments 

 awl-shaped, half the length of the calyx ; anthers adnate, of 

 two round, separated cells. Germen inferior, turbinate. Style 

 thick, furrowed, nearly as long as the stamens ; stigma six- 

 cleft, with recurved segments. Capsule leathery, six-celled, 

 not bursting. Seeds several in each, cell, inversely egg-shaped. 



