336 MR. H. W. PUGSLEY : A REVISION OF THE 
et inferne multo angustati, satis compressi et plane carinati, siccitate omnino 
dense tuberculato-rugulosi. 
Hee species distinetissima per petala exteriora interioribus longiuscule 
longiora et latiora affinitatem conspicuam eum genere Sarcocapnos monstrat 
sed fructum monospermum tuberculatum generis Rupicapnos habet. 
K. sarcocapnoides regionem montanam Algerie australis in provincia 
Constantinà (Djebel Tougour prope Batnam) habitat, ubi in fissuris rupium 
crescit. 
This plant was originally described by Cosson in 1855 from a specimen 
observed among the exsiecata sent out by Balansa under the number 995 
and otherwise referred to Fumaria numidica, Cosson noting that the plant 
constitutes a trie passage between the genera Fumaria and Sarcocapnos 
owing to the form of its corolla. Later, however, in Illustr. Fl. Atlant. i. 15 
(1882), Cosson remarks that F. sarcocapnoides appears to be a shade-form 
only of F. numidica, adding that shade-forms of Sarcocapnos similarly 
deviate from the type; and in the Compendium it becomes a sub-variety of 
.F. numidica. It is not easy to understand how shade-conditions could 
transform the corolla-characters of F. numidica into those of F, sarcocapnoides, 
developing the margins of the outer petals while rendering depauperate the 
wings of the inner ones, and as moreover it is not only in their flowers that 
the two plants differ, the earlier view of Cosson is here followed. 
R. sarcocapnoides seems to bea very rare plant, and it is not known to have 
been collected except by Balansa, from whose specimen at Paris the above 
diagnosis is taken and the accompanying figure drawn. It was unknown 
to Pomel, who adopted the species from Obaban: 
[7. Rurrcarxos Repovpiana, Pomel, Nouv. Mat. Fl. Atlant. fasc. ii. 379 
(1876) ; n. v. Fumaria Reboudiana, Batt. & Trabut, Fl. d'Alger. i. 26 
(1888). 
Rupicapnos perennis, fragilis, X. sarcocapnoidi affinis. Folia viridia, 
foliolis in segmenta cuneiformia vel oblonga, obtusa fissis quinato-pinnata. 
Bractew oblongw ; pedicelli apice incrassati. Sepala obovata vel suborbicularia, 
valde dentata. Corolla 9-10 mm. longa, roseo-albida ; petalis exterioribus 
marginibus latis patentibus ¿n limbos suborbiculares nne dilatatis, superioris 
calcare obovato longiusculo, inferioris basi valde saccatá ; petalis interioribus 
apice atropurpureis haud conspicue. alatis. — Fructás parvi, obovati, breviter 
mucronati, in sicco tuberculato-rugosi. 
R. Reboudiana rupes ad Bou-Taleb (Reboud) Algeriz australis habitat. 
This plant appears distinct from Pomel’s brief description, and is retained 
as a species although no material of it has been seen. It is evidently, as 
stated by Pomel, a rélalively large-flowered ally of R. sarcocapnoides. | 
