notanffjue. LASIAGROSTIS. 95 



Macrochloa tenacissima Kunth Rcvis. Gram. 1. (1829) p. 59. Ejusd. 

 Agrost. syn. p. 179 et suppl. p. 132. tab. 12. fig. 1. 



In coUibus incultis Bai"bariae denso caespite crescens (Desf. ); Tunc- 

 tum (Vahl! in Hb. Schumacher. ) ; Lusitania raro v. g. ad promont. St. 

 Vincentii (Link); Hispania: in coUibus aridis circa Malagam (Salzmann!), 

 in aridis regni Granatensis a planitie usque ad allit. 3500 ped. (Bois- 

 sier!), in montibus et collibus sabulosis juxta Aranjuez et Cienpozue- 

 los, copiosissime ad Bugnonam et Chinchon (Lciffling 1758); in Attica 

 (Smith). — Hispanis audit: Esparlo (in Arragonia Lygeum spartum sic 

 nuncupatju'). Usus hujus frequcntissimus per universam Hispaniam ad 

 storeas, ad funes crassiores pro navibus atque corbes et alia utonslUa 

 pro transportandis fructibus. (Loffling.) 



Radix subrepens, in uno spccimine k pollices descendens, crasse- 

 fibrosa, pcrennis. Cidmus 2 — 3 pedaUsj scabriusculus, basi ramosus, 

 ad nodos inferiores plures, superiores binos pubescens. Vaginae fauce 

 tomentosae, internodiis plerumque longiores. Ligiila dense viUoso-ciUa- 

 ris, brevis, utrinque in subulam capiUarem, 2 — 4 Unealem excurrens. 

 Folia fiUformia, 8 — l'i- poUicaria, glabra, tenuissima, superiora k — 6 

 poUicai'ia. Panicula Uneari-lanceolata^ medio Uneas 6 — fcre poUicem 

 lata, 7 — 11 poUices longa, viridulo-albcsccns, sacpe e spadiceo vai'ia. 

 Axis communis glabriuscukis, inferne circiter per interstitia sesquipol- 

 licaria radios emittens, ibique pilosulus. Radii inaequales, longiores bi- 

 poIUcares, scabriusculi. Pedicel/i aut brevissimi, aut spicula dimidio bre- 

 viores, dense hispiduli, inferiorcs saepe barbati. Spiculae 10 lineales, 

 lineari-lanceolatae. Gluma inferior nonnihil longior, ambae subquinque- 

 nerves, glabrae, submembranaceae. Vahndae glumis demum paullo fir- 

 miores, stipiti insidentcs obconico, basi glabro, dehinc piloso; injerior 

 5 nervis, apice bifida, tota pilosa; arista ad tertiam partem infeme plu- 

 mosa et torta, dein recm'va et scabriuscula ; valvula superior paullo an- 



