95 



Floristisehe Beiträge, 



Von 



Anton Heimerl, 



k. k. technischen Hoc 



(Mit Tafel IV.) 



'9 



Assistent an der k. k. technischen Hochschule in Wien. 



(Vorgelegt in der Versammlung am 2. Jänner 1884.) 



I. X Cirsium Kornhriberi nova hybrida 



(pannonico X rivulare). 



Caulis hypogaeus oblique descendens, radiculis adventivis copiosis, 

 omnino non incrassatis, filiformibus instructus, epigaeus 50 — 80cm. ältus, 

 Simplex vel raro ramo superne instructus, ad medium circiter decrescenti- 

 foliatus, superne subaphyllus, inferne angulatus et breviter hirtulus, superne 

 tenuiter striolatus (saepius purpurascens) atque parcius sub capitulo densius 

 floccosus. 



Folia ambitu lanceolata, superiora elongato-lanceolata, acuta, in pagina 

 superiore laete viridia, in inferiore subpallidiora, trichomatibus rigidulis bre- 

 vissimisque utrinque asperulata, eeterum lamina solum in nervis pilosula non 

 floccosa in margine autem breviter spinuloso-ciliata, modo subintegra hinc inde 

 dentata, modo varie lobata vel pinnatifida; folia basilaria et infima caulis 

 in petiolum laminam aequantem vel purum breviorem attenuata, subintegra, 

 folia inferiora breviter petiolata (cum petiolo 100— 130mm. : 25— 30mm.) 

 pinnati lobata vel pinnatifida, lobis (vel segmentis) in basin et apicem foliorum 

 versus diminutis, 4 — 7nis utrinque, triangulari-lanceolatis, acuminatis, inte- 

 griusctdis vel hinc inde dentatis, media et superiora sessilia, breviter sed 

 valde conspictie ad 5 — 8mm. decurrentia, obsolete dentata, summa integer rima, 

 anguste lineari-lanceolata vix decurrentia supra basin caiüem semiamplectentem 

 leviter constricta, vis Cirsii pannonici (L. fil.) igitur simillima. 



Capitulum subsolitarium (plerumque capitula abortiva in axillis fo- 

 liorum diminutorum superioris caulis inveniunturj quoad magnitudinem ea Cirsii 



