Explicatio tabulae XXVI (Cirsium Lojkae). 

 •lanta magnit. natur. — 3, 4, 5, 6, 7, phylla involucri bis i 



nato bis auctus. — 10, tubus stamiueus explanatus quater auctus. — 11, 12, 

 13, radii pappi 15Xaucti. 



760. Cirsium obvallatum (M.Bieb.) DC. 



In monte Tetenar, 2200 m., 1 Aug. fl. — In jugi Latpari 

 septentr. reg. alpina, 5 Aug. fl. — Ad radices merid. montis 

 Djanga-Tau supra Chaldechi, 2100 m., 8 Aug. fl. fr. juv. — 

 In jugo supra convallem Kiikartli, 2600 m., 10 Sept. fl. — 

 Adysch (Lojka). 



761. Cirsium esculentum C. A. Mey. var. Caucasicum C.A.Mey. Cirs. 

 Ruth. p. 4. — G. rhizocephalum Boiss. ex parte. 



In jugo Tieberdinsky occid. clivis berbosis alpinis, 2500 m., 

 2 Sept. fl. fr. — In jugo Do-ut, 1 900-2000 m., 3 Sept. fl. fr. 



Spontaneum subacaule vel breviter caulescens caulibus lon- 

 gioribus bipollicaribus, in speciminibus Genevae e seminibus 

 Kubanensibus eductis tripollicaribus. Radicis fibrae fusiformes 

 incrassatae; folia elongato-oblonga, radicalia exteriora saepe 

 subintegra, caetera sinuato-lobata vel fida vel partita, laciniis 

 breviter lobulatis, lobulis spinuloso - marginatis in spinulam 

 3-10, raro 15 mm. longara flavam excurrentibus; folia caulina 

 caeteris similia non manifesto decurrentia, bracteantia sub- 

 linearia spinis gracilibus 5-10 mm. longis pectinata capitulo 

 breviora vel longiora. Capitula majuscula semi-ovata solitaria 

 vel 2-3 ex eadem rosula. Involucri phylla glabra viridia apice 

 plerumque atro- purpurea et linea nigra carinata latiuscule lan- 

 ceolata, exteriora in spinam erectam subpatentem 6-7 mm. 

 longam abeuntia, intima linearia scarioso-cuspidata. Flosculi 

 vivi albi 25 mm. longi pappum vix excedentes; limbus tubo 

 parum brevior; antherae coerulescentes ; stylus albus. Pappus 

 albus basi pallide rufescens. 



Obs. Quoique nous n'ayons pas vu d'exemplaires du G. rM- 

 zocephalum, que C.A.Meyer, modifiant ses premieres indications 



