A FLORA OF GIBRALTAR AND THE NEIGHBOURHOOD XIX 



The subdistrict contains 950 species, about 120 of which do 

 not occur elsewhere in our region. The following are not recorded 

 from elsewhere in the province, those in roman type being mi- 

 known in Spain : — Baniuiculus flabellatus v. acinacilobus ? gre- 

 garius '? and confertus (all endemic), Fuinaria arundana, Bmssica 

 Icevigata, Halimium formosum, Silene mogadorensis, Silene nutans, 

 Moehi-ingia peiitandra, Arenaria algarbiensis, Ulex luridus, U. hra- 

 chyacanthus, Ononis crotalarioides (v. rubricaulis is endemic), 

 Melilotus alba, Trifoliuni filiformc, T. Jaminianum, T. Juliani, 

 Tetragonolohus conjugatus, Lotus uliginosiis, Vicia onohrychoides, 

 V. hatica, V. disperma, Potcntilla Tormentilla, Peplis Portula, 

 Myriophylliun alterniflorum, Isnardia jJcdustris, Sanicula europcea, 

 Bupieurum foliosum, Opononax Chironiwn, Goleostephus Myconis, 

 Evax Cavanillesii, Carduus nutans, Centaurea sempervirens, Leon- 

 todon hispanicus var. psilocalyx (endemic), Crepis corymhosa, 

 Myosotis lingulata, M. maritima? Veronica piersica, Bartsia aspera, 

 Orohanclie loricata, 0. TCapum-GenistcB, 0. Hcenseleri, Mentha 

 Bauhini, Salvia Sclarea, Teucrium campanulatum ? T. bracteatum 

 (only near Tarifa), Plantago aniplexicaulis '? Buniex Friesii, Mer- 

 curialis Eeverchoni (endemic), Orchis palustris, Irisjuncea, Allium 

 rubrovittatum, A. Moly, Juncus foUosus, J. sylvaticus, J. supinus, 

 Cyperus esculentus, Kynchospora glauca, Carex acuta, Arrliena- 

 thcrum pallens, Koeleria Salzmanni v. valdepilosa (endemic), 

 Holcus grandiflorus, Festuca montana, NotocJilcdua Marantce. 



District III. Subdistrict iii. Palmones. — This is a small sub- 

 district, and I have only worked a small portion of it, namely 

 about three square miles. On the coast is a broad stretch of 

 sand dunes, with some damp hollows, the ground becoming 

 muddy and saline towards its western end, which I have called 

 the Palmones or Guadarranque Marshes. This is succeeded by a 

 line of salt pans, separated from the sand dunes by a cultivated 

 strip. North of this, again, there is an extensive freshwater 

 marsh, which I have designated the Guadacorte Marshes. On 

 the east the Palmones Eiver, with its tributary the Aguacorte, 

 has muddy banks which produce a few local species. Inland 

 from the Guadacorte Marshes the country rises in undulating hills 

 of a similar nature to those about San Eoque, till the higher 

 ground of the S. de Kompecoche or S. de Alcala is reached, but I 

 have not explored this part, nor have I any records from it. 



The subdistrict being a small one, containing 520 species ; only 

 sixteen, of which six are grasses, are known in it which are 

 unrecorded from other parts of the region, but several others are 

 very local elsewhere. The following are not recorded elsewhere 

 in the province : — Trifoliuni ccnmum. Astragalus algarbiensis, 

 Peplis erecta, Umbilicus pendulinus v. truncatus (endemic ?), 

 Erythrcea spicata v. glauca (endemic ?), Myosotis sicula. 



Geografhical Distribution of Species. 

 It is hoped that the following arrangement will bring out the 

 distribution of the species in a clearer manner than that adopted 

 by Debeaux, though no selection of zones can l)e made which will 



