90 PATAGONIAN EXPEDITIONS: BOTANY. 



LUZULA PUMILA Hook. - - Macl., p. 302. 

 (Sub. Juncoides pumilum. ) 



According to Spegazzini, this species occurs in S. Fuegia, but, according 

 to Buchenau, it is confined to New Zealand ; I have not seen a Fuegian 

 specimen. D. 



L. RACEMOSA Desv. --Macl., p. 302. 



(Sub. Juncoides racemosum.} 



Is to be deleted. Not in our district. 



In " Die Gefasspflanzen der Magellanslander " I have given this species 

 from Buchenau's determination as indigenous to Fuegia. In Pflanzen- 

 reich June., p. 75, it is not stated to occur in our district, evidently 

 because the determination has turned out to be incorrect. My own exami- 

 nation of the specimens has shown that, without doubt, they belong to L. 

 chilensis. From typical specimens, however, they differ, as previously 

 pointed out, in having more remotely attached spikelets. D. 



L. SPICATA DC. Macl., p. 303. (Sub Juncoides spicatum.} 



Is to be deleted ; not occurring in our district. 



The specimens placed by Macloskie under this species belong to 

 Luzula alopecurus. 



After Macl., p. 303, line 13: 



Genus 5. POTOSIA Buchenau. 



Flowers dioecious, terminal (?). Male flowers, long-stalked, i-bracted; 

 tepals as long, glume-like ; stamens 6, a third shorter ; filaments very 

 short ; anthers linear, apiculate. Rudiment of a pistil. 



Female flower concealed in the leaf-axil, sessile; the stigma exsert, 

 tepals linear, convolute, their margins membranaceous, broad. Ovary 

 narrow, attenuate to a long style ; stigmas 3, long. Capsule acuminate, 

 3-septate. Seeds many, white. 



P. CLANDESTINA (Phil, sub Rostkovia] Buch. 



The only species. Yellow-green. Stems densely leafy, with sheaths 

 of dead leaves. Leaves at base bifarious, at apex trifarious ; their sheaths 

 broad, rectangular, with 2 obtuse auricles, lamina rigid, linear, pungent. 



Chili, at foot of Mts., N. Patag., in territory of Neuquen. D. 



