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with in such quantities that the deciduous Euphorbias disappear 

 in the numbers. 



Among the shrubs which I had the opportunity of collecting 

 the following were deciduous; several of them had, however, a 

 few fresh leaves : Euphorbia obtusifolia Poir. ; E. balsamifera Ait. ; 

 E. regis Jubae Webb ; Asparagus umbellatus Link ; Salvia œgyptiaca 

 L. ; Linaria scoparia Brouss., a prostrate shrub; Kleinia neriifolia 

 Haw. In this plant many of the branches had still small rosettes 

 of few leaves left at the ends. 



The evergreen leaves are in different ways protected against 

 the drought of summer: 



Aphyllous: Euphorbia canariensis L. ; E. aphylla Brouss.; 

 Sonchus spinosus D. G. 



Succulent leaves: Campylanthus salsoloides Roth; Aeonium 

 Lindleyi Webb, viscous, .glandular pubescent; Plocama pendula 

 Ait. ; Argyranthemum frutescens Sch. Bip. 



Small, densely pubescent leaves: Lotus glaucus Ait., a 

 prostrate shrub; Lavandula abrotanoides Lam; Schizogyne obtusi- 

 folia Cass., var. sericea D. G. ; Artemisia canariensis Less ; Artemisia 

 reptans Sm; Polycarpia Candida Webb: Erankenia hirsuta L., 

 revolute leaves. 



Small coriaceous leaves: Micromeria terebinthinaceaW ebb ; 

 Micromeria varia Benth. , revolute leaves; Rubia fruticosa Jacq., 

 fresh leaves only at the ends of the hranches; Periploca lœvigata 

 Ait.; Pistacia atlantica Desf. 



Small linear leaves; Reseda scoparia Brouss.; Alagopappus 

 dichotomus Gass. 



Among the herbs were found grasses with revolute leaves 

 of which only few were fresh: Aristida Adscensionis L.; Andropogon 

 hirtus L. ; Pennisetum cenchroides Rich. ; Tricholæna Teneriff ae Pari. 



Glandular pubescent, tall herb: Inula viscosa Ait. 



Succulent prostrate herb: Mesembryanthemum nodiflo- 

 rum L. 



Prostrate herb with deciduous leaves: Sonchus nudi- 

 caulis Sch. Bip. 



Bulb- and tuber-plants: Urginea hesperia Webb, flowering 

 from leafless bulb; Iris sp. in fruit, leafless. 



The deciduous species thus make up the third or fourth part 

 of the common species, yet there is in the lowest part of the low- 

 country a still greater fraction. In so far as can be judged they 



