406 SYNGENESIA. 
phyllus, 3-dentatus. Cal. 5-phyllus. Sem, caly- 
culo 4-phyllo involuta. _ 
663. BALTIMORA. Recept.paleaceum. Pappus nullus. 
Flose. radii 5. Cal. cylindricus, polyphyllus. Sem. - 
3-quetra, 
664. PARTHENIUM. Recept. paleaceum, planum. Pap- — 
pus nullus. “Cal. 5-phyllus. Sem. obovata. 
d 665. IVA. Recept: pilosum. Pappus nullus, Cor. radii 5. 
Anthere approximate, non coalita. Styli 2. longi. 
ae Cor. radii 5, femineis minimis. Cal, 3-phyllus. 
ah 666. AMBROSIA, Monoica. Masc. Recept. nudum. An- 
* there approximate, hon coalite, Cal. 1-pbyllus, 
hemisphericus, multiflorus. Fem. Cal. 1- aac: S, 
subinteger aut 5-dentatus, 1-florus, Cor, nul Sty- 
li 2. Nuxe calyce indurato, 1-sperma. 
667. XANTHIUM.  Monoicum. Masc, Recept. paleace- 
um. Anthere approximate, non coalite. e don 
lypbyllus, imbricatus, hemisphericus, multi 
Fem. Cal. involucrum 2-pbyllum, 2-florum. Cor. 0. 
Stigm.2.  Drupa M muricata, 2-fida. Nucleus di 
2-locularis. . 
Ne SEGREGATA. (55.1.9 0 
668. ELEPHANTEPUS. Recept. nudum. P purs 
ceus, Calyculus 4-florus. Corollula ligulatae, hera 
maphrodite. í 
t * 
1. Æ QUALIS... ; 
s 593. CICHORIUM. Gen: pl. 1251. agd 
Intybus. 1.6 foribus axillaribus geminis subsessilibus, foliis runci- x 
natis. Willd, sp. pl. 3. p. 1624. ; 
Icon. Fl. dan. 907. Engl. bot. 539. 
In fields and on road sides : Pensylvania, TEIE n. 
phia. Most certainly introduced from Europe. Y: — 
July, Aug. v.v. Flowers beautiful bine. A ee 
