880 PATAGONIAN EXPEDITIONS : BOTANY. 



ii. NASSAUVIA GLOMERULOSA Don. (DC. sub Strongyloma.] 

 Primary leaves subulate, dilated at base; secondaries complicate in- 

 curved, muticous. Heads solitary. (Near N. axillaris.} 

 (Chili, in high Andes) ; Patagon. 



12. N. HETEROPHYLLA Alboff. 



Long, creeping rhizome, sending up floriferous, villous stems and sterile, 

 glabrous shoots. Leaves dissimilar; on the shoots ovate-lanceolate to 

 ovate, entire, ending in long spines ; on the flowering stems broader, pin- 

 natifid, with linear, spinescent segments, rarely apically toothed. Heads 

 in an ovoid, terminal raceme. Involucral scales leaf-like but broader, 

 villous. Beautiful, with white, aromatic flowers. 



Fuegia, mountains near Ushuaia. 



13. N. LAGASCE (H. & A. sub Caloptilium, 1835). 



Cespitose. Leaves imbricated, oboval-cuneate, crenulate, nervose-striate, 

 recurved, covering all the stem. Heads glomerate at the apex of the 

 stem, with sessile glomerules. 



S. Patagon., by Lago Argentine, Chubut in mountain rocks. 



14. N. LAXA (Phil, sub Panargyrus}. 



Silvery-silky. Stem laxly branching, procumbent, the flowering 

 branches ascending. Leaves sparse, linear, entire, obtuse, herbaceous, 

 soft, 13 by 2 mm. Heads crowded at the tops of the branches. Floral- 

 leaves lance-linear. Pappus plumose. Branches 12 cm. long. 



S. Patagon., by Rio Gallegos. 



15. N. MAGELLANICA Gmel. 



Stem ascending, closed with alternate, imbricate leaves, which are cuneate- 

 oblong, pointed, deeply serrate. Spike simple, dense, terminal, invested 

 with ovate, acute bracteoles. Exquisitely scented. 



Magellan. 



1 6. N. MODESTA O. Hoffmann. 



(Mastigop/iorus.} Low, branching shrub, 10 cm., rooting at base. 

 Leaves imbricate, suborbicular, amplexicaul, the limb deltoid, mucronate, 

 entire, minutely silky-puberulous. Heads small, solitary, ending the 

 short, few-leaved branches, sessile. Involucral scales 5, broad-elliptical, 



