647 



defined. Perhaps these circumstances suggesl that the forms men- 

 tioned above belong lo older form-groups of Vulgata, closely allied 

 to Cerinthoidea. 



13. HIERACIUM LEUCOGRAPTUM Dahlst. a. sp. 

 Tab. XII. Fig. 1.) 



Caulis 10 — 25 ctm. altus, sat gracilis, 2— 3-folius, basi densis- 

 sime et longe pilosus, supra eaulinum secundnin sparsim pilosus, 

 apice pilis paullo densioribus obsitus, medio sparsim, basi et præ- 

 sertim apice densius stellatus, apice glandulis rans v. solitariis ob- 

 situs. — Folia basalia sub anthesi 2 — 4, petiolis dimidium laminæ 

 v. interdum laminam æquantibus, extimum ovatum v. ovale basi 

 truncata v. breviter descendente sparsim — densius et acute den- 

 tatum + obtusum mucronatum , intermedia ovalia — oblonga v. 

 etiam late ovato-lanceolata + acuta sat crebre et acute dentata — 

 denticulata, intimum + lanceolatum v. ovato-lanceolatum, sæpe sat 

 longe acutum crebrius et longius dentatum; eaulinum inlimum + 

 lanceolatum — anguste lanceolatum in petiolum 10 — 15 m. m. 

 longum et 3 — 4 m. m. latum marginibus fere paralellis basi am- 

 plectente cito contractum v. lineari-lanceolatum basi in petiolum 

 latum vix conspicue contractum, intermedium anguste lanceolatum 

 — - lineari-lanceolatum infra medium contractum, basi lata semiam- 

 plectente sessile, summum v. summa + linearia basi sat lata semi- 

 amplectente sessilia, superiora vulgo integra, inlimum v. inferiora 

 infra medium sparsim et argute dentata + longe acuta; omnia basi, 

 in marginibus et subtus in nervo dorsali dense et longissime pilosa, 

 subtus in pagina sal dense et supra densiuscule pilosa, cæterum in 

 nervo dorsali parce v. in caulinis sparsim, in marginibus rare stellata. 

 Inflorescentia 1 — 3-cephala contracta ramis subarcuatis acladium 7 — 10 

 m. m. longum plus duplo superantibus, sat dense stellatis et glan- 

 dulis pilisque mediocriter longis, sparsis — sat densiusculis obtectis. 

 — Involucra 11 — 12 m. m. longa atroviridia variegata, basi ovata 

 postea rotundata. — Squamæ exteriores breves lineares sublaxæ ob- 

 tusiusculæ, intermediæ et intimæ e basi latiore sensim in apicem 

 obtusum — obtusiusculum attenuatæ, omnes intimis late viridimar- 

 ginatis et apice piceis exceptis in marginibus lloccis albis lineam 

 deorsum angustam apice latiorem formantibus notatæ, cæterum 

 sparsim stellatæ et glandulis parvis sparsis pilisque mediocribus 

 albidis basi crassa nigra ±_ densis obtectæ. — Calathium sat mag- 



