242 PATAGONIAN EXPEDITIONS: BOTANY. 



SCHIZANTHUS Ruiz et Pav. 



Corolla irregularly bilabiate, and inverted by torsion of peduncle ; the 2 

 upper segments are 3-4-lobed, lowest by torsion ; the lowest segment is 

 simple or 2-lobed, and is highest; the lateral segments are 4-lobed. 

 Erect herbs with cymose flowers, and mostly pinnate leaves. 



S. GRAHAMI Gill. 



Leaves once or twice pinnatisect, the segments entire, or dentate-pin- 

 natifid. Corolla-tube exceeding the calyx; mid segment of posterior 

 abbreviated lip bifid, acuminate; lateral segments acute, shorter; mid 

 segment of large anterior lip rhombic or lance-oblong, acuminate. Sta- 

 mens briefly exserted. Flowers lilac or pink, with yellow sepals. 



Chilian Andes ; North Patagonia, near Trelope. 



P. 727, add, 12 lines from foot, the genus: 



ARGYLIA D. Don. 



Erect herbs with spirally arranged, large, much divided leaves, the seg- 

 ments i-2-pinnately parted. Sepals nearly distinct ; corolla funnelform, 

 with 5 spreading lobes. Thecae of anthers not toothed. 



And the three species : 



A. BUSTILLOSII Phil. 



Suffruticose, branching much at the base, the branches 7-10 cm. long, 

 ending in a spine, glabrate. Leaves digitate ; the 6-9 leaflets incised or 

 pinnatifid ; their lobes acute-mucronate. Flowers very large, solitary 

 below the spines ; calyx-margins ciliolate ; corolla funnelform, 5 times as 

 long as calyx. 



N. Patagonia, Territory of Neuquen ; Cordillera of Mendoza. 



A. POTENTILL^FOLIA DC. 



Stem erect, leafy to mid, glabrous ; leaflets 7, lanceolate-cuneate, 

 coarsely inciso-dentate. Calyx-leaves linear, acute ; corolla much exceed- 

 ing the calyx, becoming smooth, 4 cm., yellow. 



A. POTENTILL^EFOLIA Var. AUSTRALIS Phil. 



N. Patagon., Territory of Neuquen, along Rio Manzano. 



