MACLOSKIE : COMPOSITE. 783 



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9. NARDOPHYLLUM Hook. & Arn. (Dolichogyne DC.) 



Branching shrubs, tomentose or smooth, with small or narrow, entire, 

 alternate leaves, and yellow, discoid heads, either solitary at the ends of 

 the branches or sessile in a leafy corymb. Invohicre oblong, with few- 

 seriate, dry scales. Anthers basi-obtuse. Style-branches short, flat, with 

 long, obtuse appendages. Pappiis-setce copious, unequal, the outer shorter. 

 Achenes silky. 



Species 10, in Andes of Bolivia and southwards. 



"The genus Nardophyllum of America is only geographically separate 

 from Pteronia of Africa ; and both are Aster-species with mostly sessile, 

 solitary heads, having no ray-flowers." (O. Kuntze.) 



i. N. DARWINI A. Gray. 



Stem and branches suberect, angulate, appressed-tomentose. Leaves 

 imbricate, coriaceous, linear, recurved. Heads pedunculate. Involucre 

 long-campanulate, its scales narrow-linear, acuminate, vernicose. 



S. Patagon., by Puerto Deseado. 



2. N. HUMILE A. Gray. (Plate XXVII, B.) 



Stem prostrate, branching, the branches short, leafy ; the leaves tomen- 

 tose underneath, small, imbricate, linear-oblong, obtuse, recurved, cori- 

 aceous with revolute margins. Head solitary. Invohicral scales obtuse. 



Varies by having the leaves longer or shorter, glabrate or hoary, and 

 heads sessile or not. 



Patagon., near Lago Nahuel-huapi ; by Rio Sta. Cruz (Hatcher); by 

 Rio Gallegos (O. Nordenskjold) ; at Cape Gregory, Magellan ; Fuegia. 

 (Verified in Gray Herb.) 



3. N. KINGII A. Gray. 



Shrub with stem and branches suberect, angulate, appressed, tomentose, 

 lax-leafy. Leaves coriaceous, linear, obtuse, recurved. Heads rather 

 large, sessile or on short peduncles. Involucre broad-campanulate, its 

 scales oblong-lanceolate, acute. Achenes silky. 



Patagon. and Port St. Helena. (In the Gray Herbarium, a shrub with 

 radiating branches having terminal heads.) 



