xanthium. COMPOSITAE. 151 



6. X. DISCOLOR Wllrth. 1. c. f — Caule simplici nudiusculo; foliis e basi trinervata 

 longe producta lata cordatis ovato-subrotundis quinquelobis inaequaliter crenato-den- 

 tatis obtusis, subtus petiolisque dense adpresseque setoso-pilosis discoloribus ; fructibus 

 ovato-ellipticis, utrinque breviter attenuatis birsutis, aculeis confertis porrectis calvis, 

 e basi subaequali striata sensim in hamos breves patulos cartilagineos desinentibus pal- 

 lescentibus, phylla ealycina linearia subaequantibus, rostris elliptico-linearibus intus 

 contractis teretibus, apice rectiusculis, aculcos superantibus. O — X. Indicum Wall. 

 Catal. 3181. A. — DC. I. c. — X. orienlalc Linn. Spec. pl. 1400. — X. CMnrnse Mill. 

 Dict. no. 5. — X strumarium Thbrg. Fl. Japon. 267. — Crescit in India orientali. 



X X. ROXBURGHII Wllrth. I. c. 233. f — Caule ramoso foliisque subtus hirsutis, in- 

 ferioribus subcordatis superioribusque basi aequali produclis acute dentatis, ad nervos 

 strigosis, utrinque concoloribus; fructibus elliplico-oviformibus, utrinque attenuatis hir- 

 suto-pilosis, aculeis distinctis porrectis, e basi subaequali parce pilosa in hamos paten- 

 tes inflexos desinentibus, calyce polyphyllo longioribus palentibus, rostris ellipticis sen- 

 sim acuminatis rectis aculeos aequantibus. © — X. strumarium Willd. Herb. 17469. fol. 6. 

 — A*. Indicum Rxbrgh. mss. — Crescit in India orientali. 



8. X. STRUMARIUM Linn. Spec. pl. 1400. (excl. patr. Americ. et syn. Gronov.) — Schkhr. 

 Hndbch. III. 271. t. 291. — Flor. Danic. I. 970. - Wllrth. I. c. 234. f — Caule sub- 

 ramoso (saepius maculato) foliisque trinervatis utrinque pilis adpressis strigosis vestitis, 

 inferioribus cordalis, reliquis in basin inaequalem integram productis trilobis sinuato- 

 dentatis, ulrinque eoncoloribus; fruclibus aggregatis ulrinque sensim conformiterque 

 attenualis hirsutis, praeter apicem aculeis remotis seu dislinctis e basi crassiore hirsuta 

 in hamos brevissimos tenuatis, calycem polyphyllum fructusque aequantibus munitis 

 erecto-patentibus, rostris turgidis ovatis acutis rectis, intus contractis, aculeis breviori- 

 bus (directione variis). © — [X. annuum Georgi, Reise II. 713. — X. monoicum Gilib. 

 Fl. Lithuanic. III. 170.] — X. vulgare Lam. FI. Franc. II. 56 . — Xanthium foliis semi- 

 trilobalis uncinatis Hall. Helvet. no. 1621. — Blakw. Herb. t. 444. — Lappa minor 

 seu Xanthium Dioscoridis C. Bauh. Pinx. 98. — Xanthium etc. Dodon. Pemptad. 39. — 

 Matthiol. Histor. 234. fig. 1. — Tabernaemonl. Krauterb. 1157. fig. 2. — Bettlcrlaus Fuchs, 

 Krauterb. t. 329. — Crescit passim per totam Europam borealem. 



Tribus II. Campylorrhyncha: Rostra in hamum cum spinis confor~ 

 mem desinentia. 



f Fructus basin versus mediamve partem usque pilis albis conformibus 



hirsutus. 

 0. X.- BREVIROSTRE Wllrth. 1. c. 235. f — Caule ramoso foliisque utrinque pilis ad- 

 pressis scabriusculis trinervatis, inferioribus cordatis, reliquis e basi cuneata aequali 

 profunda trilobis inaequaliter sinuato-dentatis; fructibus majusculis e basi Ieviter pro- 

 ducta oviformibus hirsutis, aculeis remotis e basi subcompressa albo-hirsuta glandulosa 

 in hamos patentes desinentibus, calycis phylla ovato-oblonga rostrumque superantibus, 

 inferioribus refractis, roslris ovatis acuminatis, aculeis brevioribus patentissimis, apice 

 incurvis. © — A. Indicum Wght. Herb. 1446. — DC. 1. c. (ex p.) — In India orientali. 

 10. X. PENSYLVANICUM Wllrth. 1. c. 236. f — Caule simplici parce setuloso; foliis longe 

 petiolalis, omnibus e basi deltoidea trinervia ovatis trilobis, supra setuloso-scabris, sub- 

 tus reticulato-nervosis scabriusculis aureo-glandulosis glaucescentibus; fructibus aggrega- 

 tis majusculis, e basi leviter producta ovato-ellipticis glabriusculis subglandulosis, aculeis 

 subremotis e basi subaequali tenuatis, fructus diametrum aequantibus calvis flavescen- 

 tibus, in hamum brevem leviter inflexum desinentibns, infimis reversis, basi latioribus, 

 rostris ovato-ellipticis in acumen anguste canaliculatum tcres sensim productum, apice 

 leviter aduncis patentibus, aculeis triplo crassioribus vixque longioribus. Q 

 a, glandulosum: foliis sublus fructibusque glandulis aureis splendentibus adspersis, 



aculeis flavescentibus. — A. strumarium Beyrich mss. 

 /?. eglandulosum: foliis subtus fruclibusque eglandulosis, aculeis pallidis. 

 y. occidentale Poepp. mss. 

 Crescit in America boreali. 



