SONCHÜS CASSINIANUS, Nob.
SO N CH U S , Linn.
Subgenus RHABDOTHECA , Cass. — Confer supra, p. n o .
SONCHUS CASSINI ANUS , Nob.
R ha'bdotheca sonchoides, Cass., in Diet, des Sciences N a t vol. 48, p. 4»5. (Ex descriptione et loco natali.'j'-• :
Ex parte Z ollixoferia chondrilloides (excluso Synon. Desfont.), D. C., Prodr., vol. 7, p. i 83.
Ex parte Zollixoferia arabica et ex parte Zollixoferia uucronata, Boiss.! Diagn. Plant. Or., fasc. 7, p. 1 a. (Confer
Sonchum Candolleanum, Nob.)
Verosimiliter ex parte Scorzonera rbsedefolia , Linn.
Verosimiliter ex parte L eontodon mdcronatos, Forsk.
Radice perenni, descendente, démuni lignescente. Foliis varie dissectis. Achæniis pappo subsemel
brevioribus (1-1 2/3 lin. longis), exterioribus cinereis v. nigricantibus papilloso-velutinis, interioribus
lævigatis.v. obsolete sparseque papillulosis v. superficialiter transverse rugulosis; costis estriatis v.
obsolete striatnlis. Pappo caducissimo, pauciseriali, 20-3o-seto ; setis plerisque strictis.
Planta polymorpha (sæpe tarnen forints schizophyllis Picridii tingitani persimilis), perennis, glaberrima , glaucescens,,
erecta, 1 /2 -1 1 /a-pedalis (hebetata occurrit i - 4-pollicaris). R adix descendens, simplex v. parce ramosa, demiiin lignosa
et pleiocephala, individuis junioribus gracilis, robustioribus adultis longitudinem pedalem et digit! crassitiem attingens.
Cattles exiles v. subfasciculati, erecti v. interdum ascendentes, flexuosi imoque fràctiflexi, subteretes v. plus minusve angulati,
striati, lævigati, foliati, plus minusve ramosi (macriores simplices v. bifurcati, robustiores apice dichotome paniculati, in parte
inferiori alterne ramosi, interdum fere a basi dichotomi), firmi, fared, robustiores crassitie calami auserini. Rami caule
tenuiores et parcius foliati (macriores foliorum loco ad nodulos squamuligeri), subpalentes v. minus divergentes, angulati,
macriores indivisi, robustiores bifurcati v. iteratim dichotomi, plus minusve flexiiosi, omnes florigeni. F olia carnulosa,
costato-uninervia, varié laciniata (haud raro Resedoe alboe foliis similia) et denticulata (denticulis inaequalibus, pier unique
deltoideis, nunc creberrimis nunc rarioribus, simulac laciniis in mucronem albidum cartilagineum conicum v. subulatum
productis), nonnunquam indivisa, sæpe (præsertim radicalia) undulata v. crispa. Folia radicalia, (plantis fructiferis haud
raro pleraque v. omnia jam emarcida) 2-5 pollices longa, conferta, in petiolum plerumque brevem bâsi dilatatum attenuata,
variiformia (in quovis individuo uihilominus.subconformia), modo interrupte pinnatipartita, segmentis (sursum v. deorsum
flexis v. rectis, plus minusve elongatis v. abbreviatis) rachique linearibus v. lanceolato-linearibus, inciso-v. eroso-dentatis,
plerumque acuminatis ( interdum longissime ). Folia primordialia plantas juvenilis anguste linearia v. filiformia, remote
denticulata. Folia caulina sparsa (inferiora plus minusve approximata, superiora simulac ramealia gradatim remotiora et
minora, pleraque minima), sessilia, subamplexatilia, brevissime decurrentia, varie auriculata (auriculis inæqualibus, inciso-
dentatis v. palmatibdis v. rarius indivisis denticulatis aut integerrimis , lanceolatis v. deltoideis v. rotundatis, deflexis, band
raro cochleatis, in foliis caulinis mediis haud raro terminali folii parte majores et tunc segmenta lateralia folii inæqualiter
tripartiti simulantes), multiformia (imo prætervisis variationibus auricularum basilarium); inferiora radicalibus subcon-
formia; superiora et ramealia interdum inferioribus conformia, v. ovata, v. ovato-lanceolata, v. deltoidea, v. e dilatata basi
oblongo-aut lineari-lanceolata, pinnatifida, v. trifida, v. inciso-dentata, v. integerrima aut subintegerrima. Folia ramealia
summa et ramularia bracteolis pedunculorum similia, minima. Calathidia 3o-4o-flora, pedunculata, erecta. P edunculi
(rectius rami 1 luli-floriferi dicendi) terminales v. (ad ramos robustiores) distiche oppositifolii et terminales, solitarii, monoce-
phali, teretes, striatuli, graciles, i -3 pollices longi, bracteolati, apice haud incrassati; fructiferi stricti, plus minusve divergentes.
Braçteolæ foliorum colore et cousistehtia (exceptæ summæ quæ fere omnino scariosæ), minutas v. minimæ, sparsæ,
remotæ, subadpressæ, semi-amplexatiles, subcartilagineo-marginatæ, e cordato-v. subsagittato-auriculata basi subrotundæ
v. ovales v. ovatæ v. ovato-lanceolatæ, plerumque acumiuulatæ, cartilagineo-mucronulatæ, nunc integerrimæ nunc (præcipue
inferiores) pauci-denticulatæ (denticulis nunc obtusis nunc acutis v. mucroniformibus) ; summæ anthodio approximatæ,
minutissime ciliolatæ. Anthodium 4-6 lineas longum, campanulatum v. subcylindraceum, floribus circiter dimidio brevius,
calyculatum, biseriale, 19-12-phyllum, fructiferum reflexum. Foliola herbacea, membranaceo-marginata, subæquilonga,
planiuscula, ecarinata, striatula (tenerrime 3-v. 5-nervia), apice in appendiculum rotunda turn fimbriolatum dilatata, basi