a flora of gibraltar and the neighbourhood 97 



Amentifer^. 



Alnus glutinosa Gaertn. var. doiticulata Eegel. By streams, 

 chiefly in woods ; locally plentiful ; 1-3. III. i. Cork Woods ! 

 ii. By many streams from the mountains above Algeciras ! iii. Salt 

 Pans ! 



Salix alba L. By water holes and streams, doubtless often 

 planted, but native in many places ; 3-4. III. i. About San 

 Roque ! Cork Woods ! ii. ! iii. About Salt Pans ! 



fS. cinerea L. Similar places; frequent, commonly planted by 

 water holes; 1-3. III. i. By the Lajo! Cork Wood Sotos! 

 ii. Waterfall Valley ! Carnero Hills ! iii. Salt Pans ! 



S. 2^&dicellata Desf. Similar places ; occasional or frequent ; 

 1-3. Catkins produced on pedunculate leafy shoots, leaves like 

 last. III. i. By Lajo at First Pine Wood! ii. Waterfall 

 Valley! 



[S. hahylonica L. is occasionally planted, as by river above 

 San Roque Station !] 



Populus alba L. Woods and by mountain streams, often 

 planted, but here and there native ; 1-3. [I. Planted.] III. i. 

 Near First Pine Wood ! Almendral ! Almoraima ! ii. Valley 

 over Frayle Bay ! iii. Guadacorte ! 



[P.pijramidalis Rozier, the Lombardy Poplar, is often planted.] 



CYTINACE.aE. 



Cytinns Hypocistis L. On roots of Cistacea ; occasional ; 

 3-5. III. i. Summit of Chair! Cork Wood Crags ! Pine Wood 

 Plains ! ii. Mountains south of Waterfall Valley ! 



Conifers. 

 \Pinus halepensis Mill. Woods; rare; 4-5. Cones rather long, 

 shining, deflexed. III. i. Between San Roque and Castellar, D. 



[P. sylvestris L. and P. Pinaster Ait, are planted. They both 

 have small cones, P. Pinaster having longer leaves and larger 

 cones, scales with acute ridges.] 



P. Pinea L. Woods ; frequent ; 4-7. Cones large and ovoid 

 or subglobose, scales with obtuse ridges. III. Forms the Pine 

 Woods in many places, but also planted ! 



Juniperus Oxy cedr us 1j. Rocky ravines ; rare; 3-7. I. West 

 slopes, Schott ? III. i. Hills above S. Carbonera, D. 



Gnetace^. 



Ephedra fragilis Desf. Rocky slopes and sandy places ; 

 frequent on Rock, occasional in Spain ; 4-6. Dr. Stapf says all 

 he has seen from the Rock is the type, i.e. var. Desfontainei Stapf. 

 It varies much in habit. I. ! Especially about Levant ! 

 III. i. Puente Mayorga ! ii. Palmones Playazo! Rocks at Alge- 

 ciras, Wi7ikl. 1 



[E. altissima Desf. {E. gibraltarica Boiss. ?). Dr. Stapf says 

 all he has seen from here so named is E. fragilis. The true 

 E. altissima is a very different species.] 



Journal of Botany, July, 1914. [Supplement.] ]i 



