246 Ambrosiaceae, 
repandis, ceteris oblongo-lanceolatis acutatis, dentatis vel pinnatifidis, 
sessilibus; capitulis parvis, globosis; involucro pilis glanduliferis hispi- 
dissimo, phyllis acuminatis basilaribus paucissimis vel nullis; ligulis 
flavis; acheniis nigris. 
In eultis, vineis, arenosis, ad litora maris, rare. Argolis: pr. Vromo- 
limni in peninsula Methana (Heldr., insula Poros (Reinh.) Andros 
(Sart., Melos (Sibth.) los, Thera, Therasia (Heldr. et Kameni (Urv.). 
— Maio, Jul. (3. 
LXIII. Ordo. Ambrosiaceae Cass. in bull. soc. phil. 
1815 p. 173. 
1. Ambrosia L. gen. n. 1057. 
1. À. maritima L. sp. p. 988; Sieb. avis p. 5; Ch. et B. exp. 
p.270, Fl pelop. p. 63; Raul. cret. p. 780; Bois. fl.-or. ILL:p.. 252; 
Heldr. fl. cephal. p. 44, chlor. Thera p. 16; Bald. in nov. giorn. bot. 
1894 p. 97; Form. in Ver. Brünn 1895 p. 25. — Icon: Rcehb. XIX. 
t. 216. — Exsicc.: Reverch. pl. cret, n. *0. 
Villoso-canescens; caule stricto, divaricatim ramoso, folioso; foliis 
petiolatis, in lacinias oblongas, obtusiuscule dentatas bipinnati-partitis ; 
capitulis ad apicem ramorum dense spicatis; spicis basi femineis, superne 
masculis; involucro viridi, femineo cornubus rectis 4— 5 echinato; flori- 
bus flavis. 
In arenosis maritimis. Epirus: pr. Prevesa (Dald.); Cephalonia: 
pr. Drapano, Lixuri (Heldr.; Argolis, Maina (Chaub.); Messenia: pr. 
Gialova (Zahn); Cycladum insula Paros (Sart., Andros, Naxos, Thera 
(Heldr.); Creta (Sieb.: pr. Platania (Rev. Retymo (Raul) —— Jul. 
Sept. (3. 
2. Xanthium L. gen. n. 1056. 
1. X. strumarium L. sp. p. 987; S. et S. pr. IL p. 234; Oh: 
et B. exp. p. 270, Fl. pelop. p. 63; Friedr. Reise p. 273; Eraas fl. 
class. p. 216; Raul ceret. p. 780; Bois. fl. or. ILE, / p. 25d ERO UH 
cephal. p. 44; Form. in D. bot. Monat. 1890 p. 14, in Ver. Brünn 
1895 p. 25, 1896 p. 39, 1897 p. 30; Haussk. symb. p. 143. — 
icon: Fl. dan. t. 970. 
Caule erecto, asperulo, ramoso, foliato, inermi; foliis asperis, longe 
petiolatis, cordato-ovatis, irregulariter lobato-dentatis; capitulis apice caulis 
et in axillis ramorum glomerato-racemosis, superioribus masculis; invo- 
lucris fructiferis ovatis vel oblongis, breviter pubescentibus, spinis apice 
uncinatis obsitis, rostris binis superatis. 

a. typicum. Involueri apex spinis destitutus, rostra subdiver- 
gentia. — Exsicc.: Orph. herb. a. 1850. — 
p. antiquorum Wallr. Beitr. bot. I. p. 229; Haussk. symb. p. 
143; pro sp.; Bois. fl. or. III. p. 252; Form. in Ver. Brünn 1896 
