66 



blade, but gradually expanding into ovate blade, there being hardly 

 any constriction between the two. Blade somewhat obovate-emar- 

 ginate, with very revolute edges. Standards tall, broad, very much 

 twisted. All parts of the flower a pure dead white, except the bright 

 orange ridge on the fall. 



Hab. Algiers, Marais de la Rassanta. 



FIG. 43. IBIS XIPHIUM var. BATTANDIERI. 



NOTE. M. Battandier loc. cit.) regards this as being truly 

 I. xiphium, the above being the only habitat in Algiers ; he considers 

 the common xiphium-l&e bulbous Iris of Algiers to be I. Fo\tanesii. 



A variety of I. xiphium gathered by Mr. Maw in the Sierra Nevada 

 of Spain, besides being very slender in foliage, differs from the type 

 in ' the blade of the fall being relatively large, and having a distinctly 

 crenate edge ; the signal, of a bright orange, is also more sharply defined 

 than in the type. The plant, however, hardly deserves a distinct name. 



9. I. SEROTINA. Willkomm, Prodr. M. Hisp. i. p. 141. 

 (From serotinus, late.) 



Fig. None. 



Charact. Resembles J. xiphium, but appears to differ not only in 

 its very late flowering, but in being less vigorous, with the upper 

 leaves very thin and awl-like, in having reddish spathe-valves, in the 

 flowers being very much protruded from the spathe-valves, and 



