MACLOSKIE: VERBENACE^E. 683 



A8. Spikes paniculate. Stems tetragonal. 



b. Leaves lanceolate, auriculate, amplexicaul, rough on the veins. Stem naked upwards. 



Bracts lanceolate. Flowers rose or violet. bonaricnsis. 



b2. Leaves cuneate-oblong, rough underneath ; smaller and narrower upwards. Flowers 



violet. intermedia. 



i. VERBENA AMEGHINOI Speg. 



Small, cespitose, densely branching, spiny shrub. Old leaves arcscent, 

 curved-spreading, slender ; with small fasciculate apical twigs, appressed- 

 Icafy. Leaves trifid, hispid ; the segments narrow-linear, erect, coarsely 

 costate, revolute-marginate, apex acute, mucronate, pungent. Spikes 

 apical, sessile, few-flowered, with leafy bracts. Calyx 5-costatc, hispid, 

 5-toothed, the teeth spinescent. Corolla ochroleucous, long-exsert, gla- 

 brous, enlarged at the throat. Lobes sublinear, obtuse. 



Patagon., on plains near Golfo de San Jorge. 



2. V. ASPERA Gill. & Hook. 



Fruticulose, with hirtellate branches, and small, alternate leaves, axillary 

 proliferous, oblong-lanceolate, acute or spatulate, attenuate to a short 

 petiole, margins revolute, rough. Spikes subverticillate, few-flowered, 

 laxly imbricate, elongate. Bracts subulate, shorter than the tubular, 

 unequal, 4-cleft calyx, and, like it, rough. Corolla white, glabrous, its 

 limb 5-parted. 



(Peru) ; Patagon. 



3. V. AURANTIACA Speg. 



Lax-branching perennial, with branches prostrate to ascending, gla- 

 brous, sparingly ramulose. Leaves thick, membranaceous, spatulate to 

 obovate, glabrous, 3-toothed or 3-lobed, the lobes obtuse. Spikes apical. 

 Bracts lanceolate, pubescent. Calyx tubular, pubescent. Corolla twice 

 as long, orange, glabrous. Anthers yellow, not appendaged. 



(Argentina) ; Patagon., by Golfo de San Jorge ; Rivers Gallegos and 

 Sta. Cruz. 



4. V. AZORELLOIDES Speg. 



Like V. patagonica Speg., but less villous, and less compact. Leaves 

 small, linear, entire, obtuse, puberulous. Spikes sessile, few-flowered. 

 Corolla purple. 



Patagon., by Golfo de San Jorge ; Lago Argentine. 



