628 PATAGONIAN EXPEDITIONS I BOTANY. 



Patagon.; Puerto Deseado, Magellan, Falklands. N. and E. Fuegia. 

 (Dusen, "a characteristic steppe-plant") 



7. AZORELLA FILAMENTOSA Lam. 



Lax cespitose. Stems branching, the branches crowded, occasionally 

 elongate. Leaves linear-lanceolate, subspatulate, subcymbiform, their 

 margins reflexed, entire, ending in an equi-long petiole which is sheath- 

 ing and ciliate at base. Umbels short-pedunculate, 6-8-flowered. Fruit 

 ovate, subterete ; mericarps dorsally convex, 5~ridged. 



Magellan, S. Patagon., at mouth of Rio Gallegos (Dusen) ; through 

 Fuegia to Cape Horn; Falklands. "A steppe-plant; not very common 

 throughout Fuegia and the Falkland Is. Gaertner saw specimens in the 

 Banksian Herbarium with 3 carpels." 



8. A. FUEGIANA Speg. 



Lax, cespitose, green. Petioles crowded, long-slender, arcuately spread- 

 ing, glabrous, basi-amplexicaul, long-pectinate-laciniate, ciliate ; their limbs 

 flat, triangular-cuneate, entire, truncate, 3-lobed or 3-toothed, the lobes 

 ending in a cilium. Umbels long-peduncled. 



Magellan, S. Patagon., Rio Gallegos ; Lago Argentine ; Fuegia, Greg- 

 ory Bay and S. Fuegia. 



9. A. GLEBARIA (Comm. sub Bolax] A. Gray. (A. gummifera Franch. 

 non Poir, A. ccespitosa Vahl). Bolax. 



Perennial, cespitose herb. Leaves imbricate, trifid, glabrous, coriaceous, 

 the lobes ovate, obtuse ; petioles suberose-membranaceous, not marginally 

 ciliate. Umbel simple, subsessile, 4-flowered. Involucral leaves 4, equal- 

 ling the pedicels. Calyx-teeth obscure. Young fruit stellately pubescent. 



Patagon., from 41 S. southwards to Cape Horn. W. Patagon., Falk- 

 lands. "Not common in the steppes, save southwards; but near the for- 

 ests. It forms bolax or balsam-bogs inland, hemispherical hillocks of 

 pale yellowish-green, so hard that one may break his knuckles on them. 

 If the day be warm they emit a faint aromatic smell, and drops of a viscid 

 white gum flow from them. They grow from the outward shoots, the 

 very old ones decaying near the ground. One mass is the product of a 

 single seed, and the result of many, perhaps hundreds of years' growth. 

 In growing, branches radiate regularly outwards from the rooting center ; 



