230 FLOWERING PLANTS OF THE RIVIERA 



laterally, 2-4 flowered. Fertile glume of 5 unequal spreading spines, the upper 

 pale 2-keeled and with 2 spreading spines. Stem erect, nearly naked. 



Dry, sandy fields, uncommon ; sometimes in cornfields, as at Plau d'Aups. 

 May-June. 



TRAQUS Hall. 



Outer glumes scariose ; inner one coriaceous and bristly. Spikelets scattered, 

 i-flowered, in a spike-like panicle. 



T. racemosus Hall. = Lappago racemosa Willd. Annual, 3-12 in.,high, 

 hispid. Stems spreading or ascending, very leafy. Glumes horny at length. 

 Bristles crooked. Spikelets 2-4, subsessile, united into a long raceme. Leaves 

 with stiff cilia ; ligule of soft hairs. 



Sandy fields. June-October. 



SETARIA de Beauv. 



Spike compound, often cylindrical. Spikelets surrounded by an involucre of 

 bristles, 2-flowered ; inferior flower rudimentary. Glumes 2, lower 3-veined, 

 upper many-veined. Sterile flower of i pale like the upper glume. 



The following species occur: S. giauca Beauv., S. viridis Beauv., very 

 common like the first, S. ambigua Guss., very rare at Hyeres in the crops, and 

 S. verticillata Beauv., rather rare, in cultivated fields. 



PANICUM L. 



Spikelets all fertile, scattered, in spikes, racemes, or panicles ; barren floret i. 

 large, glume-like, embracing the horny, ribless pale. Fertile glume nerved- 

 (Spikes fingered in Digitaria.) 



P. capillare L. Panicle much branched, capillary, spreading. Flowers 

 widely scattered. Outer glume ovate, acute ; inner and barren florets acuminate, 

 smooth. Sheaths hairy. Leaves soft, broad, hairy. An annual. 



An American grass cultivated and naturalized here and there in sandy places 

 near Nice, the Sablettes, and Toulon. Very rare. June-September. 



P. repens L. occurs rarely on sea-sands near Hyeres and Bormes. 



P. Crus-galli L. is common. Spikelets panicled, i-flowered. Stems stout. 

 Leaves broad, flat, often waved. P. miliaceum L. (Milet) is cultivated for 

 fowls, and occasionally seen naturalized. 



DIGITARIA Scop. 

 Spikelets unilateral, on digit ite spikes. Fertile glume not awned. 



D. sanguitialls Scop. = P. sailguinale L. is very common in crops, and 

 flowers from July-September. Leaves and sheaths hairy. Panicle digitate, 

 often purplish, of 3-10 long spikes. 



CYNODON Rich. DOG'S-TOOTH GRASS. 



Spikes digitate, spreading. Spikelets i-flowered, awnless, with a superior 

 rudiment. Glumes nearly equal, patent. Fertile glume boat-shaped, com- 

 pressed, 3-nerved, awnless. Styles long and distinct. Stigmas feathery. 



C. dactylon Pers. A low prostrate grass, creeping and rooting to a great 

 extent, and hence used now in many hot countries to form a sward. Panicle 

 of 3-5 slender spikes, i-ij in. long. Outer glumes nearly equal, narrow and 

 pointed. Flowering glume longer and broader, becoming hardened when 

 in fruit. 



Grassy and sandy places, borders of fields, etc., very common. June- 

 September. 



SPART1NA Schreber. 



Spikes erect, one-sided, panicled. Spikelets i-flowered, awnless. Glumes 

 unequal ; upper lanceolate. Fertile glume sessile, awnless, i-nerved. Pale 

 long, 2-nerved. Styles long, united half way. Stigmas feathery. 



