134 SILENEiE. (PINK FAMILY.) 



§ Inflorescerice regularly dichotomous. 

 19 S. crassipes. 



§ § Lower Jiow&r alar^ the others in l-sided racemes. 

 11 S. dichotoma, 12 oxyodonta. 



§ § § All the flowers in 1-sided racemes. 



13 S. Gallica, 



* * * * Mowers in 1-sided racemes. Calyx hirsute or papillary, apex not 

 contracted in fruit.. 



t Seeds with fiat face and obtusely grooved lacTc. 



14 S. Nicseensis, 15 hirsuta, 16 villosa. 



I I Seeds with ear-shaped depression at face and obtusely grooved bach. 



\ Capsule a little longer than carpophore. 

 17 S. Arabica, 18 setacea, 



\ X Capside 1-3 times as long as carpophore. 

 19 S. Damascena, 20 Palestina. 



\\X Carpophore almost 0. 



21 S. nocturna. 



I I I Face of seeds smooth, rather concane, back dieeply grooved with two 



wavy wings. 



22 S. apetala, 23 bipartita. 



***** Inflorescence dichotomous, ending in racemes or cymes. Calyx 



hairy or glabrous, apex not contracted in fruit. Tender herbs. 



t Seeds more or less compressed. 



24 S. rubella, 25 sedoides, 26 fuscata. 



+ t Seeds almost globular, with a pore at each side of umbilicus. 



27 S. Atocion. 



****** Inflorescence irregularly dichotomous. Apex of calyx not 

 contracted in fruit. Rigid lAants with filiform branches and peduncles. 

 t Seeds grooved at bach. 



28 S. Kotschyi, 29 linearis, 30 Cassia, 31 Hussoni. 



1 1 Seeds flatish at bach. 

 32 S. juncea, 33 chsetodonta. 



SERIES B. PERENNIALS. 



*" Flowers small, 1-5 in a raceme. Capsule short-stipitate. Tufted dwarf , 

 suhalpine and alpine plants. 



84 S. pharnaceifolia. 

 ** Flowers rather small ; calyx not more than .01 long; dicecious or 

 monoecious-polygamous, rarely hermaphrodite. Carpophore elongated. 



35 S. stenobotrys, 36 brevipes, 37 Bpergulifolia, 38 proinosa, 

 39 Montbretiana. 



* * * Flowers hermaphrodite, often large. 



