402 21, TEESDALIA XUDICAULIS. [CL XV. 



correspond with this order in their other relations, we can- 

 not separate thera from it. 



21. 



Teesdalia nudicaulis, R. JSr. 



Sand-Bauernsenf, Taschelkraut, Felsenkresse. — Fren. Ta- 

 bouret a iige nue. — Eng. Naked-stalked Candytuft. — Swed. 

 Sand-iber. 



This plant blossoms with us in spring, on high sandy, 

 open places. From a soft fihrous root, a number of lyre- 

 shaped, smooth leaves, expand themselves into a circle, ha- 

 ving their margins sometimes ciliated, but undivided, and 

 about half an inch long. In the midst of them, perpendicular, 

 smooth, round flower-stems arise, about three inches, or, at 

 most, half a foot in length, and of the thickness of a thread. 

 These stalks are furnished with a few lanceolate, or oblong, 

 coloured, scaly leaflets : in other respects they are entirely 

 void of leaves. On the upper part of these appears the small 

 white flower-bunch, the upper part of which resembles an 

 umbel. The single flower-stalks are scarcely two lines in 

 length. 



The calyx consists of four pieces ; the corolla of four pe- 

 tals, which, for the most part, are dissimilar, the two outer 

 being larger than the two inner. The filaments are six, and 

 stand on the receptacle. Two of them are longer than the 

 others. On each of the filaments, at its lower part, and turn- 

 ed inwards, there is a whitish leaflet, which is larger in the 

 longer filaments, and smaller in the shorter. The fila- 

 ments carry bilocular, yellow antherae. The germen is su- 

 perior, emarginated above, and carries a short thick pistil- 

 lum, with a warty stigma. The fruit is a bilocular silicle, 

 with boat-shaped wingless valves, having two round seeds 

 without a raised margin in each loculus,— attached to long 

 funiculi umbilicales, and containing the embryon without al- 

 bummous substance, its radicle being turned towards the 

 opening of the cotyledons. 



