216 CRUCIFERE. — ERUCARIA. 



Debah! , Ngonssa! ; El-Ateuf!, Ghardaïal, Oued NeumratJ, in ter Beni-Isguen et 

 Mellili!, inter Hassi El-Eadjar et Oued El-Taga, etc. — O 3 : Brezina!, inter 

 Brezina et El-Abiod-Sidi-Cheïkh! ', El-Abiod-Sidi-Cheïkh! , Arba-Tahtani ! , Tyout ! 

 (War.), Aïn-Sefra!, Aïn-Sefissifa!. — TUN. Oudref (Doùm. et Bonn. miss. 1 884), 

 in ditione Béni Zid prope Gobes (Kral.), Sidi-Salem-bou-Grara , Oued Ferd, Oued 

 El-Ftour, inter Fratis et Zaouïa El-Limagues , Oued Ziloun (Lx miss. i884). 

 In Marmarica?, iEgypto?; Palœstina, Arabia petrsea. 



Obs. Hœc planta, quam cl. Boissier genus proprium Hussonia constituere cen- 

 suit et quam ad genus Enarthroearpus , habita notisque plane alienum cl. Hooker 

 (Benth. et Hook. Gen. I, 99) refert, ab amicissimo semper defieto J. Gay rectis- 

 sime ad genus Erucaria relata fait ut clarissime ex analysibus permultis apparuit. 

 — Hussonia a cl. Boissier ab Erucaria distinguitur cotyledonibus concaviusculis 

 rectis, sed haec nota minoris momenti nempe Erucaria Boveana Goss. (Illustr. Atl. 

 I, /i5 in adn.) et E. crassifolia Delile cotyledonibus radicula non longioribus 

 planiusculis vel subconcavis rectis vel medio subinflexis quoqae gaudent. — Imo 

 in planta yEgyptiaca ad Mandara ab amicissimo A. Letourneux inventa et sub 

 nomine Hussonia Mgiceras distributa (Lx PL Mg. exs. n. 178) quam habitu 

 plane refert, et a qua tanquam speciem propriam (Erucaria Toumeuœii Goss. 

 Illustr. Atl. I, Z18 in adn.) removere vix ausus sum, semina articuli inferioris subor- 

 biculata cotyledones ut in E. Aleppica Gœrln. (conf. exsiccata Heldr. Grœc. norm. 

 n. 34o) radicula multo longiores lineares pianiusculas replicatas (conf. Illustr. Atl. 

 I, t. 33, f. 15-17) prœbent, dimi semina articuli superioris ovato-oblonga vel 

 oblonga cotyledones radiculse subœquilongas concavas rectas ut in E. Mgicerate 

 exhibent (conf. Illustr. Atl. I, t. 33, f. 9-10). 



Var. |3. Sonisii. — Hussonia Sonisii Par. msc. 



Âr. v j£i*OJl \ -3 Guern-el-Kebch ce cornu arietis» ( Par. , maie «rocher du mouton» ). 



Floribus subduplo majoribus; petalis pulchre purpureo-violaceis , calyce sub- 

 triplo longioribus. 



In aggeribus arenœ mobilis. — Sah, A 1 : in ditione Mzab ad Guern-el-Kebch 

 prope Ghardaïa ( Par. ). 



In Algeriae regione Saharensi loco citato hucusque tantum visa. 



Obs. Hœc planta, e speciminibus perpaucis floriferis et vix fructiferis tantum 

 nota, videtur varietas grandiflora E. JEgiceratis , nisi forsan ad E. Tourneuxii 

 referenda. 



TBIBUS VI. RAPMAtfEJE DG. 



Siliqua longa vel abortu brevis, teretiuscula , subtetragona vel 

 compressa, indehiscens , in locellos monospermos superpositos pi Lires vel 2 

 divisa, sœpius transversim bi- vel pluriarticulata in articulos secedens vel 

 non secedens, interdum ad artlculum unicum redacta. Cotyledones longi- 

 tudinaliter conduplicatœ. Radicula in plicatura cotvledonmn nidulans 



(0»). 



