CRUCIFER^. 49 



Division II. SILICULOSM — Fruit not linear nor elongated (the length 

 does not much exceed the breadth), ovate-oblong or roundish, 

 opening, rarely not opening, 1-4- or many-seeded. 

 Tribe 1. — Silicle opening. 



f Silicle compressed parallel to the partition, which is as broad as the 

 greatest diameter of the pouch (silicle) ; valves flat or convex, not 

 keeled or winged, 

 f f Silicle compressed perpendicularly to the partition, which is nar- 

 row, often linear ; valves keeled and often winged. 

 Tribe 2. — Silicle not opening, or rarely opening, and in this case the 

 seeds remain attached to the valves. 



SYNOPSIS OF THE GENERA. 

 Alysstjm. — Stems almost woody ; leaves entii'e, tapering at the base ; flowers 



yellow ; pouch roundish, or ovate and rounded ; cells one-two-fowr-seeded. 

 KONIGA. — Pouch ovate, compressed ; seeds 1-2 in each cell. 

 Deaba. — Pouch ovate or oblong, slightly convex ; cells many-seeded. 

 CocHLEAEiA. — Poucli glohular, with very convex valves ; seeds nimierous. 

 Aemobacia. — Leaves entire, toothed or incised; valves ivithout nerves; seeds 



numerous (fruit often abortive). 

 Camelina. — Pouch angular, someiohat ohovate, witli a Hnear appendage united 



to the base of the style. 

 Vella. — Pouch ovate, with a dilated, vnnged, leaf -like, fiat appendage (style ?). 



Alyssum, Lin. — Annual or perennial plants, with rigid or al- 

 most woody stems, and entire, tapering leaves. Sepals erect, not 

 enlarged at the base. Stamens with basal appendages (the late- 

 ral ones especially) . Pouch roundish or ovate-rounded, notched 

 at the apex, compressed, surmounted by the persistent style; 

 valves convex in the centre, flat at the margin; cells 1-2-4- 

 seeded. Seeds compressed. 



A. calycinum, L. — e.b.s. 2853. l.b.s. 82. 

 A. 7. C? Lat. 50-56°. Tem. ? 



Stems several, prostrate or ascending, rigid, simple at the base, 

 leafy. Leaves oblong or oboval (the whole herbage is hoary, pu- 

 bescent, and somewhat tubercular) . Elowers yellow at first, then 

 white, in long simple clusters. Calyx persistent. Petals slightly 

 notched, a little longer than the sepals. Pouch orbicular, notched 

 at the summit, crowned by the short style, covered with spread- 

 ing hairs. 



Said to grow on ploughed land and commons. (See ' Phytolo- 

 gist,' ii. 284.) Annual; May-June. 



. KoNiGA, Br. — Herbaceous or shrubby plants, with entire, 

 mostly narrow leaves, and white or yellow flowers. Pouch ovate, 



* 7 h 



