MACLOSKIE : REVISION OF FLORA PATAGONICA. 203 



ments narrow-lanceolate ; corolla white, campanulate, 5-lobed, the lobes 

 acute, with a small lobe in each sinus. Bracts linear. 

 Brazil, Patagonia. 



P. GILLIESII Hook. & Arn. 



Differing from the type in having leaves smaller and thicker, closely 

 and briefly pubescent, hispidulous on both sides. 



N. Patagonia, near Carmen de Patagones, mouth of Rio Negro ; Puerto 

 San Antonio. 



P. 665, after Philibertia, add the genus of Asclepiadacece. 



7. CYNANCHUM Linn. 



Corolla campanulate or rotate, its lobes dextrorsely overlapping; a 

 membranaceous crown affixed to the staminal tube ; broad, tubular, cup- 

 like or annular, 5-lobed, with 5 scales in the throat. Stigma convex, or 

 conic, erostrate. Pollinia solitary in the thecae. Twining herbs or under- 

 shrubs, with opposite, heart-shaped or hastate leaves. Chiefly of the Old 

 World. 



I. C. BULLIGERUM (Speg.) 



Syn. Vincetoxictim biilligemm Speg. 



Crown very deeply parted or its segments distinct. 

 Mid-Patagonia, along Rio Carren-leofu. 



P. 665 : 



2. C. (section CYNOSTOMUM) PACHYPHYLLUM. 



Leaves glabrous, lanceolate or oblanceolate, basiobtuse, or subemar- 

 ginate, apex acute, margins revolute, pale underneath. Cyme extra-axil- 

 lary, few-flowered. Corolla campanulate, its petals erect, oblong. Staminal 

 crown membranaceous, surrounding the gynostegium, 5-lobed, lobes trun- 

 cate. Follicles smooth, ovate, acuminate. 



Chiloe, etc. 



C. PACHYPHYLLUM Dene., K. Sch. 



Crown-lobes 5, stalked, higher than gynostegium. Flowers white, 

 leaves broad, lanceolate or ovate, coriaceous. 



Southern Chili ; northern section of West Patagonia. 



