1 108 



petiolata vel attenuato-sessilia, reliqua ± sensim decrescentia sessilia, superiors magis 

 remota anguste lanceolata vel linearia, summa subtus parcefloecosa. Involucra aume- 

 rosa 8—9 mm longa ovat6-cylindrica denique crassa subatra vel subcanofloccosa den- 

 siuscule vel dense, saepe sublonge nigro-glandulosa sparsim vel disperse vel baud pilosa, 

 squamis lineari-laneeolatis acutiusculis plerisque acutis, interioribus dilute marginatis. 

 Ligulae breves vel brevissimae, stylis lividis. Achaenia ±z atra, 2 — 3 mm, columnaria 

 (sursum vix subattenuata), pappo ± sordide albido. 



Var. a. genuinum Zahn. — Involucris' nigro-glandulosis basi floccosis parce vel 

 disperse pilosis. 



Mexiko: San Luis Potosi (J. G. Schaffner n. 287— 288 pp.!, Palmer n. 552— 

 553!); Durango (Palmer n. 653 pp.)!; Coahuila: Saltillo in der Sierra Madre (Pal- 

 mer)!; Chihuahua: Stadt Chihuahua (Pringle n. 592, 770- Mexikaniscb.es Sudkali- 

 fornien: Saucito (Brandegee). Texas: zwischen den Flussen Limpio und Rio Grande 

 (Wright). — August— Oktober. 



Var. (■}. Palmeri Zahn. — Involucris subcanofloccosis epilosis, glandulis dilutioribus 



Durango (Palmer n. 653 pp.)! 



Sect. XXXIII. Crepidisperma. 



Crepidisperma A.-T. in Ann. Jard. Geneve I. (1897) 92 pro subsectione sectionis 

 Pulmonareaeformia; Peter in Engler-Prantl, Pflzfam. IV. 5. 387. — Chionoracium 

 : --arpum Sch.-Bip. in Bonplandia IX. (| 861) 173. — Genus ? Orepidispermum 

 Fr. Epicr. (1862) 153. — Heteropleura Sch.-Bip. in Flora (1 862) 434. — Cfr. p. 1077. — 

 Saepissime hypophyllopodum, raro phyllopodum, pleio- vel polycephalum. Folia lanceo- 

 lata vel elongato-oblonga vel ovato-oblonga basi ± amplexicaulia, caulina raro pauea, 

 plerumque 5— 10( — 15, rarissime ad 20) evoluta, omnia praesertim margine saepissime 

 parce microglandulosa. Involucra (5,5— )7— 1 0(— 1 2, rarissime ad 14) mm longa 

 graciliter vel crasse cylindrica fere semper parce vel densius minute glandulosa haud raro 

 etiam parce vel subpilosa, plerumque parce (basi) floccosa, squamis ± acutis vel ob- 

 tus IS saepe subimbricatis. Ligulae brevissimae zt luteae apice glabrae. Styli ± f« scl - 

 Achaenia rufo-atra vel fusca vel atra elongata, 3,5 — 5 mm longa, sursum parum vel 

 subattenuata vel manifeste attenuata. — Praecedenti sectioni similia. 



Zentralamerika. — Fig. 78. 



2(— 3), radicalia numerosa, capitula 

 cco!a~ 5 ^~~ 12 ^' inV ° lucra 5 ' 5— 7 mm subdense 

 >lia caulina compluria vel numerosa, radicalia florendi 

 mpore saepissime ± 0, capitula plerumque nume- 

 ( " a c ' o ^ nvolucra ^-4 2 mm longa vix vel basi sub- 



•Folia caulina lanceolata vel linearia basi haud am- 

 plectentia, ad 1 2-plo longiora quam lata. (Squamae 

 epdosae). v 

 I. Squamae eglandulosae , ligulae sursum carneo- 

 purpurascentes, pedicelli subefloccosi, capitula 



Squamae glandulosae, Ugulae 



