A FLORA OF GIBRALTAR AND THE NEIGHBOURHOOD 121 



ciras! iii. Guadacorte Marshes! and probably many other 

 places. 



S. Iwrdeaceiis G. & G. (S. mollis Pari.). Grassy places ; very 



common in Spain, occasional on the Kock ; 4-6. I. Above 



Alameda! Buena Vista! By North Front Cemetery ! II.! III.! 



Var. leiostachys M. k K. is a glabrous form. III. iii. Pal- 



mones Marshes ! 



Var. contractus Lge. ? has a compact panicle with short 

 pedicels. III. i. Pedrera ! 



*S. Cavanillesii Wk. [Bromus scoparius L.), Sandy ground ; 

 rare; 4-6. Panicle very dense, awns long, divaricate. III. ii. 

 Algeciras, Winkl. 



S. squarrosus Bab. Sandy and cultivated fields ; rare ; 5-6. 

 Panicle very lax, spikelets pendulous, lanceolate, with very 

 divaricate awns. III. i. Near San Roque, Brouss. 



S. viacrostaclujs Pari. Similar places ; frequent ; 5-6. Like 

 last, but panicle and spikelets erect, the latter larger and 

 broader. III. 



Var. hrcvispicatus Boiss. has smaller more simple panicle. 

 III. i. By watercourses, Campamento Common ! 



Hordeum murmuvi L. Sandy and waste places ; very common ; 

 3-5. I.! II.! III.! 



Var. inajor Boiss. with inner glumes of sterile spikelets ciliate 

 on both sides, appears common. I. Rosia ! III. ! 



H. maritimum With. Dry sandy and clayey spots ; very 

 common, often far inland ; 5-6. I. Grassy rocks, D. II. ! III. ! 

 H. hulhosum L. Chiefly by dry watercourses; very common; 

 5-6. III. ! 



^gilops ovata L. Dry grassy and sandy places ; very com- 

 mon, except on Rock ; 4-6. I. Windmill Hill ! Europa Flats ! 

 Governor's Cottage ! III. ! 



^. triaristata Willd. Similar places ; much less common ; 

 5-6. Spikes larger, awns much longer, more erect, those of lower 

 pale very unequal. III. i. Campamento Common ! By Lajo 

 below First Pine Wood ! ii. About San Bernabe ! iii. About 

 Palmones Bridge ! Guadacorte ! and elsewhere. 



jE. triuncialis L. Similar places ; occasional ; 5-6. Spikes 

 linear, awns very erect. III. i. Campamento Common ! Lower 

 slopes Chair ! Almoraima ! iii. Aguacorte ! Guadacorte ! No 

 record for ii., but it doubtless occurs. 



Agropijron junceum P. de B. Sandy shores; locally frequent; 

 6-7. I. Governor's Cottage! North Front Butts! Catalan 

 Bay ! Here forms are found with leaves flat, l|-3 lines broad, 

 or involute, l-l^- lines when flattened. They look very different. 

 II. ! III. i. Sands near La Tunara ! iii. Palmones Sands ! 



A. elongatum P. de B. Muddy salt marshes ; rare ; 6-7. A 

 stout, stiff, erect species, with large spikelets. III. iii. Guadar- 

 ranque Marshes ! 



f^. campestre G. & G. Sandy grassy places; frequent; 6-7. 

 A very glaucous species, like a slender A. rcpcns. III. i. and ii. ! 

 [A. repens P. de B. is abundant in the province.] 



