TETRADYNAMIA.— SILIQUOSA. 24o 



seed ; inferior with a pendulous (sometimes 

 abortive) seed. 



411. THLASPI. Silicle compressed, emarginate, many- 

 seeded ; valves carinate, (often winged) Fitam. 

 without teeth, distinct. Cal. equal at the base. 



•112. DRABA. Silicle entire, oval or oblong; valves 

 flat or convex ; cells many-seeded. Seeds not 

 margined ; cotyledons accumbent.* Filam. with 

 out teeth. 



413. ALYSSUM. Silicle orbicular, or elliptical ; valves 



flat, or convex in the centre. Seeds 2 — 4 in 

 each cell, compressed, sometimes membrana- 

 ceously winged ; cotyledons accumbent. Cal. 

 equal at the base. Pet. entire. Stam. mostly 

 toothed. 



414. LEPIDIUM. Silicle ovate or subcordate ; valves 



carinate, dehiscent ; cells 1 -seeded. Cotyledons 

 incumbent. 



115. CAMEL1NA. Silicle subovate, many-seeded; 



valves turgid. Cotyledons incumbent. Filam. 

 without teeth. 



116. SUBULARIA. Silicle oval, many-seeded ; valves 



convex. Stig. sessile. Cotyledons incumbent, 

 linear, biplicate. 



SILIQUOSA. 



117. DENTARIA. Silique. lanceolate; valves, flat, 



nerveless, often opening elastically ; receptacle? 

 not winged. Funiculus dilated. Seeds i?i a sin- 

 gle series, ovate, immarginate ; cotyledons ac- 

 cumbent. 



CARDAMINE. Silique linear, with the margins 

 truncate ; valves flat, nerveless, often open 

 ing elastically, narrower than the dissepiment. 

 Seed not margined, with a slender funiculus. 



ARABIS. Silique linear: valves flat, 1 -nerved. 

 ids in a single row. Cotyledons accumbent 

 Cal, erect. 



* The cotyledons are uccumbent when the back of one of then. 

 ii applied to the curved radicle : incumbent when the ed^es of 

 cotyledons arc applied to it. 



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