GRAMINA. 



17 



mollis, with squarrose awns. The outer pale 

 of this is ohovato-suhrotund, and when ex- 

 tended is nearly as broad as lony ; while that 

 of B. confertus is oval or oblong, the length 

 more than twice the width. As neither Gus- 

 sone nor Pari, notices this character, I have 

 not ventured to call my plant B. intermedius. 



Tribe XII. HORBEACE^. 

 905. BRACHYPODIUM. 



A, Terennial. Seed crested. 



1. sylvaticum.. Spike nodding. Spicules 

 numerous (6-13). Awns of upper Fits, longer 

 than pale. L. flat, flaccid. Root fibrous, p. 

 7, 8. Shade. 



2. pin&atuiu. Spike suberect. Spicules 

 numerous (6-15). Awns shorter than pale. 

 L. rigid, somewhat involute when diy. Root 

 slightly creeping, p. 6, 7. Ery hills. 



/3. genuense, DC. Spicules fewer. 



7. Barrelieri, R. and S. Spicules 6-20- 

 flowered. L. hairy within. 



3. distachyon. Spike erect. Spicules few 

 (1-4), 6-12-flowered. Awn longer than pale. 

 Culm rigid, straight, hairless. Root fibrous. 

 a. 5, 6. Barren. Coasts of Mdt. 



4. plioenicoides. Spike erect. Spicules 

 few (3-5), 10-20-flowered. Inner Pale acute, 

 finely ciliate. Awn very short. L. convolute 

 when dry, pungent, erect. Culm smooth, p. 

 5, 6. mdt. Fr. Nice. Pdm. Landes. Now 

 ■considered as a var. of B. ramosum ; but the 

 more nvmerous spicules, and broader and less 

 convolute L., bring it as near to pinnatum. 



5. ramosum. Spicules few (1-3), 6-12- 

 flowered. AwTis very short.. L. convoluto- 

 setaceous. Culm much branched at base. 

 Root creeping, p. 5. Open rocky. Lig. Pdm. 

 Sicily. 



B. Mostly annual. Seed hairless. 



6. unioloides. Spicules crowded, vary- 

 ing from broadly ovate to oblong, and with 

 from 3 to 24 florets. Outer Pale 7-nerved. 

 a. 4, 5. It. Sic. Sard. 



7. tenellum. Spicules ovato-oblong, in 

 opposite rows, smooth, 4-6-flowered, awnless. 

 Culms simple, slender, growing in tufts, but 

 from difi'erent roots, a. 5, 6. Ery. s. Eiu-. 



j8. tenuiculum. Fits, awned. 



8. strictum. " Pan. oblong, spike-like. 

 Spicules 2-flowcred, distich. Pales rough on 

 keel. Culm erect. Root fibrous. a. 8. 

 Sands of iEtna." — Guss./ro»? Presl. 



Q.unilaterale. Spicules secund, in 2 rows, 

 awnless, very acute, a. 5, 6. Mtp. Avig. 

 Poitou. Pdm. Lig. 



10. festucoides. Spicules secund, in 2 

 rows. Fits, about 6, awned. a. 5. Lig. 

 Sard. Gennes on the Loire. 



906. LOLIUM. 



A. Root perennial, throwing out barren 

 shoots. 



1. perenne. Spicules lanceolate, exceed- 

 ing glumes. Young L. of barren shoots simply 

 folded. Awn small or wanting. Fits. 6-12. 

 p. 6. Meadows, ^c. 



p. tenue. Slender. Fits. 3-4. 



2. italieum. Spicules exceeding glumes. 

 L. of barren Shoots convolute. Elts. usually 

 awned. p. 6-9. Meadows, 8cc. occ. 



H. Root annual or biennial, without barren 

 shoots. 



3. rigidum. Glume more than half as 

 long as spicule. Spicules 5-10-flowered. Fits, 

 lanceolate, herbaceous, awnless. a. 6, 7- Ery 

 pastures anduncult. Aosta. Trieste. 



4. multiflorum. Glumes not Tialf as long 

 as spicule. Spicules 12-14-flowered. Fits. 

 herbaceous, lanceolate, closely tiled : the upper 

 awned. a. 6, 7. Fields, s. Eur. 



5. siculum. Spike dense: the Rachis ex- 

 cavated only at the base of each spicule, and 

 round and perfectly smooth below the next ! 

 Spicules mauy-flowered, incurved before flow- 

 ering, awnless, more than twice as long as 

 glume, a. 4, 5. Grassy. Sic. — Pakl. 



6. strictum. " Culm and Spike straight. 

 Spicules amiless, tereto-subulate, about 5-flow- 

 ered, equalling glume, a. 5, 6. Barren pas- 

 tures. Palermo."— Guss. 



7. linicola. Glumes hardly half as long 

 as spicule. Spicules elliptic when in fruit. 

 Pales coriaceous at the base ; inner widest, a. 

 6, 7. Among flax. G. — Koch. 



8. temulentum. Fits, elliptic. Awn firm, 

 longer than pale ; being more than a con- 

 tinuation of the midrib. Glume equal to spi- 

 cules, a. 6, 7. Corn.' 



3 H 



