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GENERA FUMARIA AND RUPICAPNOS. 339 
Heee species Æ. numidien affinis est sed foliolis laciniisque minus remotis, 
racemis relative longioribus, pedicellis crassioribus, corollis majoribus longius 
calearatis, fructibus cum mucrone longiore latioribus differt. 
R. Cossonii fissuras rupium ad Djebel-Tougour, prope Datnam, in provincia 
Constantiná Algerie habitat. 
Cosson’s original Fumaria numidica is partly founded on this plant and 
the plate in his * IHlustrationes Flore Atlantice ^ is evidently drawn from it. 
As Pomel, however, has adopted this specific epithet for the form found at 
Constantine, and Dalansa's plant from Batna appears to be an essentially 
distinct species with several points of difference, a new name becomes 
necessary, and it therefore seems fit to commemorate Cosson, who was the 
first to distinguish and describe the small-flowered species of the genus. 
10. RUPICAPNOS TENUIFOLIA, Pomel, Nouv. Mat. Fl. Atlant. 1. 244 (1874). 
Fumaria tenuifolia, Batt. & Trabut, Fl. d'Alger. i. 26 (1888); 
F. numidica, Coss. Comp. Fl. Atlant. ii, 81 (1883-1887), ex parte. 
Egsice. Dourgeau, PI. d'Alger. 1856, No. 242, ut F. numidica ! 
Rupicapnos perennis caudiee brevi crassiusculo ramoso decumbente et 
caulibus brevissimis ut in Æ. Cossonit. Folia pleraque radicalia, vix crassius- 
cula, plus minusve glauca, cum petiolo longo gracilescente 5-20 cm. longa, 
anguste oblonga, foliolis sepius 3-paribus breviter petiolatis et segmentis 
secundariis (interdum subflabellatis) in lacinias confertas lineari-oblongas, 
vel oblongas in foliis primariis, acutas vel obtusiusculas (parvas obovatas 
obtusas ap. Pomel) irregulariter fissis. 2-3-pinnatisecta. Racemi corymbi- 
formes, densiuseuli, nulti-(20—40-) fori (pauciflori ap. Pomel), cum pedunculo 
gracili (ad 5 em. longo) joliis subduplo breviores nisi in formis nanis. 
Bractew 1-15 mm. longi, oblonge, acuminate ; pedicelli fructiferi capillares 
apice inerassati flexuosi infimi ad 20 mm. longi. Sepala circa 1:5 mm. longa, 
*5— 15 nun. lata, lanceolata (ovata ap. Pomel), vix peltata, acuta, parce 
denticulata, albida. Corola minima, 4-4°5 mm. longa, prster carinas 
lutescentes vel virescentes albida; petalo superiore apice marginibus latis 
patentibus in limbum suborbicularem obtusissimum dilatato, calcare breviusculo 
satis gracili fere recto sed apice dilatato, [nectario paulo arcuato calcar 
medium attingente ap. Pomel] ; petalo inferiore apice marginibus latis in 
limbum suborbicularem obtusissimum vel truncatum abrupte dilatato, basi haud 
saccato ; petalis interioribus fere rectis apice alâ latá lutescente rotundatà 
patulà petalorum exteriorum margines subæquante præditis haud atro- 
purpureis. Fructûâs parvi, sine mucrone 1:75-2 mm. longi, 1:5-L:75 mm. 
lati, subrotundi vel subrotundo-obovati (obovati ap. Pomel), cum mucrone 
gracili obtusissimi, paululum compressi et obscure carinati, siccitate omnino 
dense tuberculato-rugosi. 
Hee species duabus priecedentibus (X. numidicw et R. Cossonii) atlinis est, 
sed per folia graciliora magis dissecta, per petala exteriora in limbos 
