A FLORA OP GIBRALTAR AND THE NEIGHBOURHOOD 81 



P. Muteli 'P.^chviltz. Apparently frequent ; 3-5. I.Gibraltar, 

 Beck. III. i. San Eoque, Beck. ii. Algeciras, Beck. 



f P. nana Keichb. f. Rare? 4-5. Like last, but corolla shorter, 

 segments of lip more acute, tube less constricted in middle, 

 III. i. Cork Wood Crags ! (my 1736, teste Beck). 



Labiate. 



Lavandula Stcechas L. Dry bushy hills ; rare in Gibraltar, 

 abundant in Spain ; 2-6. Leaves quite entire. I. South and 

 west slopes, Tournef., ScJiott, A'., D. III. ! 



\L. dentata L. Similar places ; common on Eock, rare in 

 Spain; 11-4. Leaves dentate. I. Chiefly above Alameda and 

 above Levant, but frequent elsewhere ! A whitish-flowered form 

 occurs near Jews' Cemetery! III. i. San Roque, D. '? Not 

 confirmed. 



L. multifida L. Similar places ; common on Rock, rare in 

 Spain; 11-4. Leaves pinnatifid. A white-flowered form is 

 found. I. ! III. i. Near San Roque, Boiss., Pourr. 



Mentha rotundifolia L. Damp grassy places ; very common ; 6-8. 

 I. North Front, K. A few plants above Devil's Gap ! II. ! III. ! 

 f Var. macrostachya W.-Dod {M. macrostachya Ten.) has shorter 

 denser spikes. III. ii. Algeciras, Rev. 



\M. Bauhini Ten. Similar places; rare; 6-8. Taller, less 

 tomentose, spikes very dense, short and acuminate, many in a lax 

 panicle. Perhaps only a variety of last. III. ii. Algeciras, Bev. 

 \M. aquatica L. ? Similar places or in water; rare; 7-9. 

 Debeaux throws doubt on the occurrence of this species, and 

 Perez Lara does not record it, but I have seen leaves of what 

 appears to be a glabrous form in the stations cited. III. i. In 

 the Lajo at First Pine Wood ! ? ii. Near Arroyo Gaba! ? Slopes 

 south of Algeciras ! ? iii. In a copse at Guadacorte ! ? 



M. Pulegium L. var. villosa Benth. Grassy places ; very 

 common; 6-9. Young leaves and shoots usually quite glabrous, 

 but flowering stems almost always very tomentellous. I. North 

 Front, K, &c., not there now. II.! III.! 



Lycopus europceiis L. Streams and marshes ; locally rather 

 frequent ; 6-9. III. i. Cork Wood Sotos ! ii. Mountains ! 

 iii. Guadacorte ! 



Origanum virens Hoffm. & Link. Dry banks ; rare ; 6-8. 

 III. ii. S. de Palma, Rev. 



0. compactnvi Benth. Dry places ; rare ; 6-8. Differs from 

 last in narrower more glandular bracts, and perhaps only 

 varietally distinct. III. i. Road to Malaga Gardens ! Between 

 San Roque and First Pine Wood! 



Thymus hirtus Willd. Rocks and walls ; rare ? 5-7. ]\Iuch 

 confused with next, and Mr. A. B. Jackson is of opinion that all 

 he has seen so labelled from the Rock belongs to that species. 

 Willkomm suggests that it may be a variety of T. vulgaris. The 

 distribution of our species requires further investigation. I. Boiss., 

 D. III. i. Carteian Hills, K. ii. Waterfall Valley? not seen 

 in flower. 



Journal of Botany, June, 1914. [Supplement] g 



