MACLOSKIE: GRAMINE/E. 249 



curved. Spikelets distichous, spreading ; the sterile spikelets neutral, lit- 

 tle shorter than the perfect. Empty glumes setaceous ; floral glume ob- 

 long-lanceolate, acuminate, awnless ; the palea linear, shortly 2-toothed. 

 S. Patagon and E. Fuegia (Dusen) ; high up in the mountains of Ar- 

 gentina. 



H. ANDICOLA PUSILLUM. 



At Puerto Madryn. (Dusen.) 



2. H. CHILENSE Brongn. 



Leaves short, subulate-lanceolate, erect, convolute, glabrous. Spike 

 cylindrical, slender. Glumes subulate, subequal, scabrid. Mid-flower 

 fertile, its floral glume lanceolate, awned, awn as long as the glumes. 

 The lateral flowers neutral, with i glumelle ; the inner empty glume basi- 

 lanceolate. 



(Chili) ; Patagon., Chubut, on dry hills; Fuegia. (Speg.) 



3. H. COMOSUM Presl. 



Creeping. Leaves plane ; sheaths and blades pubescent. Glumes all 

 setaceous, scabrid. Lateral flowers male, short-awned ; mid-flower per- 

 fect, its floral glume 3-nerved, with rough apex and long awn. 



(Chili.) 



H. COMOSUM FLAVESCENS Desv. 



E. Fuegia. (Dusen.) 



4. H. COMPRESSUM Griseb. 



Annual, ascending to 30 cm. Leaves plane, linear-acuminate, sca- 

 brous. Spike linear-compressed. Spikelets a\vnless, scabrous. Empty 

 glumes linear-acuminate, as long as the flo\ver in the neuter spikelets, 

 half as long as the fertile spikelets, in these lance-linear, subpungent, ex- 

 ceeding the palea. Flowers of lateral spikelets neuter. Ovary apically 

 pilose. 



(Argentina) ; S. Patagon. in salinas by R. Sta. Cruz. 



5. H. JUBATUM Linn. Squirrel-tail. 



Culm to 50 cm. tall, simple, slender, glabrous. SJieaths lax, usually 

 shorter than the internodes. Spike 8 cm. long, when ripe breaking into 

 segments. Awns of the empty and floral glumes long, smooth below. 



