896 PATAGONIAN EXPEDITIONS: BOTANY. 



13. PEREZIA RECUR VATA (Vahl) Less. (Homoianthus echinulatus Cass.) 



(Plate XXIX.) 



Stem ascending, glabrous, densely leafy, the leaves semi-amplexicaul, 

 broad-linear, recurved, with spines beneath. Peduncle nearly naked, or 

 with scattered bracts, \-headed. Invohicral scales 3-seriate, the outer 

 spinulose-toothed. Flowers light blue. To 30 cm. high, the peduncle 

 being half of this, or shorter. (Fruit scarcely hairy, but finely papillose. 

 G. M.) 



(Chili; Argentina); Patagon., by Hatcher at Cabo Negro and in the 

 Cordilleras ; Fuegia, on Beagle Channel, and passim ; Navarin I. ; Magel- 

 lan ; Falklands. 



"One of the most interesting plants of the Falkland Islands, from the 

 very sweet scent of its large, pale-blue flowers, which have been compared 

 to Jessamine and the Violets. It generally grows near the sea in rocky 

 places." (J. D. Hooker.) 



14. P. SESSILIFLORA Speg. 



(Homoianthus.] Cespitose perennial. Branches short, imbricating, 

 leafy. Leaves glabrous, narrow-linear, not spreading, sessile, dilated into a 

 periclad, with long, cottony wool underneath, scarcely mucronulate, margin 

 revolute, entire. Heads solitary, sessile amid the upper leaves. Involu- 

 cral scales ovate-lanceolate, spinulose-mucronulate. Flowers 1012, 

 white. 



Patagon., by Golfo de San Jorge ; Rio Deseado ; Rio Sta. Cruz ; in upper 

 valley of Rio Gallegos (Nordenskj.). 



80. HYPOCHGERIS Linn. 



Usually perennial herbs, with scapose, often branching stems, and basal 

 leaves, pinnatifid to entire; the scapes with few, 'small leaves or none. 

 Heads mostly large, long-peduncled. Flowers yellow. Involucral bracts 

 many-seriate, appressed. Receptacle chaffy. Anthers sagittate. Style- 

 branches obtusish. Achenes lo-ribbed, more or less beaked. Pappus 

 plumose. 



Species 50, Eurasia and S. Amer.; i naturalized in N. Amer. (Sec. 

 Achyrophorus, once deemed a genus, having a seriate pappus, includes 

 most of the S. American forms.) 



