MACLOSKIE : VALERIANACEyE. 749 



10. VALERIANA OBTUSIFOLIA DC. 



Erect, glabrous, with spindle-shaped, tuberous root and obtuse leaves. 

 Lower leaves obovate to oval-petiolate ; upper sessile, oval-oblong ; all the 

 leaves more or less coarsely toothed, especially towards the base. Cyme 

 contracted. 



(Chili) ; S. Patagon., by Hatcher at Coy Inlet, Dec. 30, 1896; B. Brown 

 at Killik Aike, Jan. 5, 1900. 



ii. V. POLYSTACHYA Smith. (Benth. & Hook, sub Phyllactis.} 



Perennial. Stem erect, simple, short, or i meter tall, i cm. thick or 

 more, fistulose, substriate or glabrous. Leaves usually pinnatifid, with 

 many segments, slender, glabrous, gradually dilated basewards, subcon- 

 nate. Lateral lobes opposite, linear, acute, entire or slightly toothed, or 

 with i or 2 large teeth. Flowers somewhat polygamous, in interrupted 

 spike-like panicles. 



(S. Brazil; Argentina); N. Patagon., by Rio Negro. 



12. V. REGULARIS CloS. 



Root short, undivided. Stem about 60 cm. high, erect, terete, sub- 

 striate, shining. Radical and stem-leaves lyrate-pinnatisect ; the segments 

 generally from the base of the petiole, 9, irregularly oblong, the upper 

 ones larger, toothed or subentire. Panicle thyrsoid, its branches some- 

 times from the base, lax, symmetrical, the pedicels tri-di-chotomously 

 divided. Flowers shorter than the lanceolate, acute, entire bracts, ap- 

 pressed-puberulous. Fruit ovate, lageniform, hoary-puberulous. 



(Chili) ; N. Patagon., in marshy places by Lago Nahuel-huapi. 



13. V. SALICIFOLIA Vahl. (V. salicariczfolia Vahl.) 



Glabrous. Stems herbaceous, simple-striate, not climbing. Leaves all 

 undivided, lanceolate, entire, sessile ; upper leaves basi-cordate. Corymbs 

 terminal, decompound. 



(Near Buenos Ayres) ; N. Patagon. (?). 



14. V. SEDIFOLIA d'Urv. (sub Phyllactis]. 



Suffruticose ; branches ascending, short. Leaves imbricate, thick, cori- 

 aceous, retuse, narrowing at base, minutely ciliate. Flowers 5-7, sup- 



