748 PATAGONIAN EXPEDITIONS: BOTANY. 



leaves, rather naked. Upper leaves pinnatipartite, the lobes 1-2 cm. on 

 each side, entire. Floral leaves linear. Branches of the lax panicle 

 opposite, apically trifid, few-flowered. 

 (Chili) ; Patagon. 



8. VALERIANA MACRORHIZA (Poepp., sub Phyllactis]. 



Perennial, glabrous herb, with coarse root. Radical leaves spatulate, 

 obtuse, attenuate to a petiole, twice as long as the limb. Scapes slightly 

 exceeding the leaves. Panicle racemose-spicate ; racemules opposite, the 

 lowest stalked. Floral leaves linear. Petals white ; stamens exsert. 



(Chili) ; Chubut, in mountains by Rio Carren-leofu. 



V. MACRORHIZA PUMILA Speg. 



Stemless, with a thick, tuberous rootstock, 20 mm. diam., having long 

 and thick fibrous roots. Leaves rosulate, obovate or spatulate, entire, 

 attenuate downwards, then dilating into a pericladium, with 3-5 parallel 

 nerves. Scapes simple, 2-6 cm. high, bearing a small, ovate flower-head. 



Patagon., Chubut Cordilleras, near Carren-leofu. 



9. V. MAGELLANICA Hombr. & Jacq. (non. Lam., Speg. sub Phyllactis\ 



Cespitose, low ; branches aggregate, some erect, some spreading, short, 

 subdenudate, divided at base. Leaves closely imbricate along the branches 

 and rosulate-crowded at the apex, spatulate ; their limb ovate, short, atten- 

 uate-petiolate, dilated basewards, and ciliate-denticulate. Flowers sub- 

 sessile among the upper leaves, 2-bracteolate., 3-staminate. 



Magellan. 



V. MAGELLANICA AZORELLOIDES Speg. 



Woody, botryose-branching trunks ; forming large, hemispherical turf, 

 25-125 cm. in diam., as of Azorella. Leaves imbricate-rosulate at ends 

 of the branches, elliptic-ovate, obtuse, flat, plicate when dry, with pectinate, 

 ciliolate petiole. Fruit glabrous, oblanceolate, obtuse both ways, crowned 

 by the calyx-teeth. 



S. Patagon., near Lago Argentine, at Karr Aike. 



(V. MOYANOI Speg. =V. CRASSISCAPOSA O. Ktze.) 

 Chubut; S. Patagon., by Lago Argentino. 



