MACLOSKIE : COMPOSITE. 893 



A$. Glandular. Stems scapiform. 



b. Leaves spatulate, toothed. Scape i-2-leaved. Head rather large, lilac, wiegalantha; 

 b2. Basal leaves pectinate, sessile. Scape with a broad bract and others smaller. Flowers 



pink. oleracea. 



/>},. Basal leaves pinnatipartite, the lobes entire, spiniferous. Outer flowers long-radiant. 



magellanica. 

 A6. Dwarf, chiefly glabrous. 



b. Leaves subulate, rigid, pungent ; the axils woolly. lanigera. 



62. Leaves pinnatisect, rigid ; lobes spiny-tipped ; petiole and involucral scales setiferous. 



Flowers blue. pilifera. 



bT,. Subfruticose. Leaves oval, acute, sessile, spiny-toothed. Heads terminal, crowded. 



pygmaa. 



i. PEREZIA BRACHYLEPIS Phil. 



Stem erect, few-leaved, with few heads, scarcely scabrous. Leaves thin, 

 the basal pinnatipartite, lobes ovate, broadly adnate at their base, sinuate- 

 dentate. Cauline leaves auricled-amplexicaul, gradually becoming sim- 

 pler. Involucral scales rather short, linear, rounded-acute. 



Valdivian Andes. Plant 60 cm. high, the involucre only 1 1 mm. 

 Chubut Mts. " Here with scales of the involucre slightly pubescent." 

 (Speg.). 



2. P. LACTUCOIDES Less. (Homoianthus magellanicus DC.) 

 Glabrous, with simple, erect, leafy stem, I -headed ; to 60 cm. high. 

 Leaves entire, radical ones petiolate, lanceolate ; cauline semiamplexicaul, 

 cordate-sagittate, oblong-lanceolate. Involucral scales 3-seriate, laxly 

 imbricate, ovate, acuminate, their margin finely denticulate, fimbriate. 



S. Patagon., at Cabo Negro ; Magellan ; E. and S. Fuegia. (Dusen.) 

 "Two plants of different sizes are included in this; except however in 

 size I am unable to distinguish them." (J. D. Hooker.) 



3. P. LANIGERA Hook. & Arn. 



Dwarf, nearly stemless, scarcely 25 mm. high, cespitose. Leaves ex- 

 ceeding the stem, subulate, rigid, pungent, the margin revolute, glabrous, 

 entire, their base dilated-amplexicaul ; their axils woolly. Involucral 

 scales oblong, mucronate, all entire. 



S. Patagon., by Puerto Deseado. 



4. P. LECHLERI (Sch. Bip., sub Clarioncea] Phil. 



Elegant, glabrous perennial, 3-5 cm. high, having a rhizome with long 

 fibres, the basal leaves rosulate, very numerous, pinnatisect, their lobes 



