75O PATAGONIAN EXPEDITIONS I BOTANY. 



ported by the upper leaves ; 5-cleft, yellow, with long corolla-tube. 

 Stamens 5. 



Magellan; Fuegia; Falklands ; Staaten I. 



15. VALERIANA VIRESCENS Clos. 



Glabrous or pubescent. Leaves membranaceous ; the radical ovate, 

 entire or lyrate, 3-lobed ; the cauline lyrate-pinnatifid ; the uppermost 

 narrow-pinnatifid. Panicle ample, lax. Fruit small, pallid, puberulous, 

 with a crown of 10-12, not long, plumose setulae. 



Chubut, common in upper meadows, near Carren-leofu. 



2. VALERIANELLA Pollich (1776). (Plectritis DC, Fedia Moench.) 

 Annual herbs, mostly with undivided leaves and no pappus-like crown 

 on the fruit. Flowers in a head. Corolla spurred or gibbous, the tube 

 at least twice as long as the lobes. Stamens 3. The sterile locules of 

 the fruit wing-like or wanting, \hzfrnit becoming trigonal. Calyx scarcely 

 visible, even in the fruit. 



Species nearly 10, on the Pacific side of N. and S. Amer. 



V. SAMOLIFOLIA (DC.) Benth. & Hook. 



A span to 30 cm. high. Verticillastrate clusters 2-4, small. Bracts 

 slender-subulate (the uppermost sometimes 3-parted). Corolla 2 mm. 

 long, sub-bilabiate, with short spur. Achene-like fruit resembling buck- 

 wheat, subglabrate, to 2 mm. long. 



(Oregon and California.) 



V. SAMOLIFOLIA PUSILLA Speg. 



Low, 10-30 mm. high, stems simple; leaves broadly obovate, obtuse, as 

 long as, or longer than, the internodes. 

 Chubut, by Rio Carren-leofu. 



Family 108. DIPSACACE^E. Teasel Family. 



Herbs, with opposite or rarely whorled, exstipulate leaves, and perfect, 

 sympetalous flowers in involucrate heads. Calyx-tube adhering to the 

 ovary. Corolla epigynous. Stamens 24, epipetalous, anthers versatile. 

 Ovary i-celled, i-ovuled. Style and stigma simple. Achene crowned 

 by the persistent calyx-lobes. Rndosperm fleshy. 



Species 140, natives of the Old World. 



