MACLOSKIE I GRAMINEyE. 233 



Aj. Panicle spike-like, afterwards spreading. Slender annual, 15 cm. tall, with convolute-seta- 

 ceous leaves. Spikelets 4-5 -flowered, at length awned. eriolepis. 

 AS. Panicle spicate. Plants glabrous. 

 b. Awnless. 



c. Leaves convolute, pungent, the lower spreading fan-like. Spikelets compressed, 



3 -flowered. arenaria. 



cz. Leaves involute with long ligules, equalling the culm, 20 cm. Rays in 2's and 3'$. 



Spikelets 4-flowered. shuka. 



b2. Short-awned. Leaves setaceous, pungent. Panicle secund, with rough rachis and flori- 



glume. Spikelets 3~4-flowered. erecta. 



3. Long-awned. Culm 25 cm.; leaves much shorter, subulate ; ligules none, but sheaths 

 auricled. Rays in 2's. Spikelets 3-flowered. pyrogea. 



i. F. ALOPECURUS Schreb. (Kunth sub Poo). 



Robttst, 60-90 cm. tall ; sheaths smooth, compressed, 30 cm. or more ; 

 leaf-blades long, smooth, 6-8 mm. broad; ligules ovate, 10 mm. long, 

 Panicle contracted, oblong-elliptical, 12 cm. long, dense, shining. Spike- 

 lets (female) 4-8-flowered ; the glumes oblong-lanceolate, scarcely as long 

 as the flower ; rachis long, woolly ; floral glume apically attenuate, acute, 

 keeled, ciliate on the 3-5 nerves ; palea narrower, shorter. 



(West Mediterr. region); widely spread from Entrerios to N. Patagon., 

 "fueo-catschu." (J. Ball.) 



2. F. ANTARCTICA Kunth. 



Leaves erect, long-sheathing, narrow-linear, rigid, acute. Panicle con- 

 tracted, oblong, interrupted at base. Spikelets compressed, spreading; 

 fascicles of hairs rare, short ; floral glume acute. Several varieties arise 

 from differences of size, and of pilosity of flowers. Possibly it is the same 

 species as F. arundo (Poa alopecurus]. 



Falklands, abundant; Fuegia, Good-success Bay. 



3. F. ARENARIA Lamk. 



Glabrous ; culms compressed, slender. Leaves convolute, pungent, the 

 lower equal and spreading, fan-like, the upper short. Panicle spike-like, 

 its rays distant, fastigiate. Spikelets compressed, about 3-flowered; the 

 glumes equal ; floral ghtme awnless. 



Magellan; Falklands ; Fuegia to near Cape Horn. " Floral glumes often 

 notched on each side, as in Dactylis. Fuegian specimens often vivipa- 

 rous." 



