70 ILLUSTRATIONES FLOli K ATLWTICE (aoctou G. BABBATTE). 



achaeniis obconicis sulcalo-slrialis apice coronato-incrassatis a speciebus caeleris onmibus generis eximie differl 

 el sectionein propriam Stephanochilus Coss. conslituit. In Kralik. Plantee Algerienses telecla n. Ci, illuslr. auctor 

 Compendii floree itlanticm dixil : crSubgenus, vel quidem genus Stephanochilus, achsenio obconico, tereli, niulti- 

 striato, superne in margioem introflexam deotalam annulalam incrassalo insigne, habilu cum Centaurea arcle 

 conjungilur. - 



i:\PLICATIO FIGURARUM. 



i. Centaurea omphalodes, pianla florifera et fructifera ramis pluribus resectis,magn. nat. 



2. Specimeu nanum, magn. nal. 



3. Caulis fragmentum folium gerens, in parte media plantse depromplum , magn. auctum. 

 h. [nvolucri squama externa, a facie exteriore \ isa , magn. aucta. 



5. Involucri squama intermedia, a facie exleriore visa, magn. aucta. 



('<. tnvolucri squama intima, a facie exteriore visa, magn. aucta. 



•j. Flosculuscum Bmbrillis nonnullis receptaculi, magn. auctus. 



8. Staminum tubus arle fissus el explanatus, a facie inleriore visus, magn. auctus. 



(). Styli pars superior ad sligma bifidum ostendendum, magn. magis aucta. 



io. Aclianiinni papposum, magn. auctum. 



ii. \chaenium longitrorsum sectum, magn. auctum. 



TABULA 14 2. 



SILYMIM EBURNEUM Coss. i;t DR. 



v eburneum Coss. el DR. ap. Bal. Pl. ilg. exs. [1802], et in Bull.Soc.bot. II. 366; Willk. el Lge Pndr. Hisp. II. aot; 

 Balt. el Trab. /•'/. 1/;/. 5iq. — K\s. Bal. Alg. 484, Reb. in Soc. Dauph. 9i3o. 



irPlauta annua vel biennis. Gaulis ssepius elatus, validus, erectus, ramosus, rarius Bimplex, 

 candidus quasi eburneus, parce pubescenti-araneosus. Folia glabrescentia vel subtus pubescenti- 

 araneosa, facie ad nervos subtus prominentes candido-variegata ; inferiora radicaliaque saepiue 

 amplissima, pinnatifida, 1<>I » is inferioribus laiis ovato-triangularibus margine plus minus ciliato- 

 spinosis, lohis supcrioribus inullo minoribus in unicum angustum acuminatum longiusculum 

 confluentibus; superiora angusta, auriculato-amplexicaulia, auriculis lobisque saepius valide spi- 

 nosis, Rpiuis candido-eburneis vel superne aureis, apice in acumen lanceolatum anguslumplus minus 

 elongalum productis. Gapitula subglobosa, maxima, pedunculo fere ad apicem foliato. Invohtcri 

 foliolis saltem inferne candido-eburneis, inferioribus erecto-adpressis appendice apice inermi vel bre- 

 vissime spinosa, interiorum appendice in spinam vaUdam |>lus minus elongatam patentem producta.t 



(Coss. et DR. /. c.) 1 \r| 2 I. .\|>l\-.!lll). 



1,1 ruderatis el ad vias, in cultis el vervaclis, in pascuis raonlosis el collibus, prseserlun in provincia Cirtensi, in reliqua 

 Mgeria rarius. — Med. C ; Saint- \nloinel; Kef Derdjal, Oued-Zenati!, Avt-Regadal, \w- Ibidl, Bou-Nmutral, F.l- Irn/, 

 Constai ' Reb. Takitount!, - A' ; Lavarande 1 gec. BalL). — Mont. C 1 Dj. Ouach!; Vedinal \ Reb.); /{/. IfaottU | Lx). 

 — Plan. C : /.'/ Kroubsl, [in-eLBey 1 Reb. |, El Guerahl, Teleghmal, Sainl-Donat!, Bas-etrMa!,Setif!; Boriff-bou- [reria) I 1 

 \lelila!, Oum tl-Asnaml, Batnal 1 Perr., Ti»s., Duk.), Oued Batnal, Xxmblse!, Timegadl, Outd Tagel, Ksourl. V : Hnr- 

 mela . inter Ogla Beida el Bou-Saada \\.\). ad moielrioam Djelfal, DjeUa I Reb. 1 1 : Stddal (B*\.), TimtUatlf Oued Sba 



