A FLORA OP GIBRALTAU AND THE NEIGHBOURHOOD 29 



few irregular radial spines, often curved and uncinate, varying 

 much in length. 



fVar. inermis Moris. Spines none or reduced to tubercles. 

 Known from M. tornata by flat faces and thick edge of spirals. II. ! 



Var. hrcviseta DC. Spines equal to, or shorter than, diameter 

 of spiral. A common form. I. Reclamation Road ! II. ! 



Var. longiseta DC. Spines longer than diameter of spiral. The 

 commonest form. I. ! II. ! III. ! 



-\ M. turbinata V^iWd. Waste sandy and grassy places; rare? 

 3-6. Very pubescent, pods rather large, tub-shaped, spines 

 reduced to tubercles. M. tuherculata Willd. is very near this, but 

 has aristate, not muticous, peduncles, and glabrous pods flat at 

 base. III. i. At Carteia ! By Lajo near upper ford ! 



Var. aculeata Gaertn. [M. olivceformis Guss.) has a spiny pod. 



I. Sandy fields near the Neutral Ground, K. III. ii. Algeci- 

 ras, Wk. 



M. Murex Willd. var. sj^hcerocajya Bertol. Similar places ; 

 rare ? 3-6. Even nearer last than M. tuherculata, but pod 

 glabrous, rounded at both ends. II. Sandy fields on Neutral 

 Ground at foot of Fort San Felipe, D. III. ii. Algeciras, Fritze, 

 Bev. Near San Bernabe, very glabrous, with short radiating 

 spines ! 



M. hisinda Gaertn. Similar places ; common ; 3-6. Spirals 

 lax, hardly contiguous, spines radiating, grooved, and usually 

 uncinate. 



Var. denticulata Urb. {M. denticulata Willd.) has only 1-3 

 turns of spiral. III. iii. Near Los Barrios Station ! 



Var. ijentacycla Urb. [M. nigra Willd.) has 5-6 turns and long 

 spines. One of the largest and most conspicuous species. 

 M. Terebellum Willd. differs only in its shorter spines, and M. lap- 

 jKicea DC, which may occur, in fewer (3-4) turns. I. K., as 

 M. Terebellum. Reclamation Road ! Below Mediterranean Road 1 



II. K., D. III. ! 



M. coronata Desr. Similar places; rare? 3-6. Spirals as 

 last, but fruit very small, of one or two turns, with short pectinate 

 spines parallel to axis. I. K. 



M. minima Lamk. Similar places ; frequent or common ; 

 3-6. Much smaller, fruit globose, with long tine spines radiating 

 spherically. I. ! III. ! 



Melilotus parviflora Desf. Fields and waste places ; frequent ; 

 3-6. Flowers usually very small, fruit globose, very coarsely 

 reticulate. Large-flowered forms look very like M. elegans. I. ! 



III. i. Slopes of San Roque, D. ii. Railside near Algeciras ! 

 Near Reina Cristina, quite prostrate ! 



\M. alba Desr. Rough slopes; rare; 4-5. III. ii. By the Lobo! 



\M. elegans Salzm. Fields and waste places ; frequent ; 3-5. 

 Fruit ellipsoid, transversely rugose. Seen in more stations than 

 those noted. I. Sandpits ! Reclamation Road ! East slopes 

 below Middle Hill ! III. ii. Marsh near Palmones Pinar ! 



M. sulcata Desf. Similar places ; very common ; 3-5. Fruit 

 with fine regular concentric ribs. I. ! III. i. and ii. ! 



