MACLOSKIE I ROSACE^E. 



477 



4. Silvery-silky, cespitose. Fruit with short spines. caspitosa. 



A^. Cespitose-silky. Flowers sexually dimorphous ; the females hid in the leaf-axils. Fruit 



winged, with glochidia and spines. tehuelcha. 



Adf. Low. Leaflets 34, oblong-serrate, 6 mm. long ; fulvous-hairy. antarctica. 



I. AOENA ADSCENDENS Vahl. 



Stem long, prostrate, sending up glabrous, leafy branches. Leaflets 

 4-7 pairs, ovate-oblong, obtuse, serrate. Scape leafy below, leafless and 

 smooth above (rarely with a bract and glomerule 

 midway) ; head globose ; bractlets linear, apex 

 ciliate. Calyx glabrous, its lobes oblong, pilose 

 on outside. Stamens mostly 4, exceeding the 

 calyx-lobes. Stigmas long, subplumose. Fruit 

 obconical, with 4 long glochidia. 



(Chili) ; Magellan (by Hatcher at Punta Arenas) ; 

 Fuegia, passim; Falklands ; N. Patagon., at Lago 

 Nahuel-huapi. (Also in Australia and S. Georgia I.) 



FIG. 74. 



Acizna adscendens. Flower 

 and bract ; calyx with glochidia 

 and stigma: all magnified. 



A. ADSCENDENS MACROCH^ETA Franchet. 



Taller. Leaves ovate-elliptical, with long- 

 stalked, terminal part. Setce 4 times as long as 

 the pilose capsule. 



Magellan ; Cape Horn. 



A. ADSCENDENS CORIACEA Small. 



More robust and elongated than the type. Leaves narrower, oblong 

 in outline, short-petioled, rigid ; the winged base of the petiole produced 

 into toothed auricles. Leaflets smaller. 



S. Patagon., at Cape Fairweather, etc. 



2. A. ALBOFFII (Alboff sine nomine) Macl. 



Low, from thick rhizome, with old leaves about the ,base, branching into 

 floriferous stems and sterile scions. Stems low, blackish, few-leaved, 

 apically naked, subglabrous. Radical leaves short-petiolate, ovate-oblong, 

 pubescent beneath, once-pinnate, with about 1 1 leaflets ; these small, obo- 

 vate-cuneate, apically cuneate-incised. Head solitary, large. Stamens 6. 

 Styles long, plumose, blackish. Fruit small, spines 4, short-glochidiate. 



Fuegia, alpine meadows above Ushuaia. N. Alboff. 



