684: 
BIDENS procera.. 
Mr, Lambert's Bidens. 
—S— q 
SYNGENESIA POLYGAMIA FRUSTRANEA. 
Nat. ord. Composit®. Adanson fam. 2.103. - 
CoRYMBIFERE. Jussieu gen. 177. Div. VI. 
SYNANTHERE. Cassini in dict. sc. nat. 10. 131, seqq. 
Tribus TX. HELIANTHER. Jd. loc. cit. 20. 369.. Sect. Il. HELIANTHER 
COREOPSIDEH. Germ. plerimque 4-gonum transversé compressum; pap- 
pus, palee nonnull crassx rigide plerdmque triquetre, germini firmitér 
affix. Id. loc. cit. 347; (ex gall. vers.) ; ; 
BIDENS. (Corsopsinis species complures. Auctorum.) Involucrum 
(calyx) polyphyllum: foliolis duplici serie dispositis; exterioribus szpiis 
longioribus, difformibus et patentibus. Recept. planum, paleaceum. © Flos- 
cult disci tubulosi, hermaphroditi; radii ligulati, neutri, rarids nulli. Ache- 
nia (semina) quadrangulari-compressa, bi-aut quinque-aristata: aristis per- 
sistentibus, retrorsim hamosis. . Herbe ramis foliisque oppositis, integris, 
incisis aut varie partitis. Flores terminales, solitarit aut corymbosi: radio 
sepissime flavo, rard albo. Kunth nov. gen. et.sp. pl. 4. 230. 
B. procera, stricta, ramosa; foliis decursivé bi-tripinnatis, pinnulis linearibus 
acutis canaliculatis integris (nec serratis) flaccidis: flore radiato; calycis 
foliolis exterioribus linearjbus obtusis pubescentibus; germinibus cuneir 
formibus transversé compressis, biaristatis. Don MSS. 
Coreopsis angustifolia. Pavon sub exemplari spontaneo Herbarit Lam- 
bertiani. — ’ ; 
Herba biennis, orgyalis v.ulird: caules plures solidi, strictissimt, obtusé 
4-gont, striatt, glabri, diametro 2-3-lineari, foliosi, supra ramosi:. ramis 
erectis oppositis teretiusculis. Folia numerosa, opposita, glabra, saturaté 
virentia, 3-7-uncialia; summa decursive pinnata, inferiora bi- v. subtripin- 
nata, pinnis oppositis, pinnulis angustis linearibus acutis oppositis subalter- 
“nisve integris (non dentatis) flaccidis 1-nerviis subcarnosis. Flores auret, 
terminales, erecti, corymbosi; pedunculis unifloris, striatis, jiliformibus, 
pilosiusculis. Cal. duplex, utrinque multiplex: interior fusco-membranaceus, 
Jfoliolis appressis ovato-lanceolatis disco swbequalibus: exterior herbaceus,. 
laxitts patens, foliolis linearibus obtusis subpilosis. Radius neuter, aureus, 
flosculis 5 ligula ellipticd oblongd plana tridenticulata: discus nigricans, 
hermaphroditus, numerosus, flosculis tubulosis 5-fidis. Anth. nigre valvis 
apicularibus luteis ovatis acutis; basi mutice: fil. lutea. Stigmata exserta,. 
replicata, linearia, acuta, plana, pilosa: stylus basi bulbosus. Sem. ob- 
longe cuneata, transverse compressa, ancipitia, marginibus scabra, aristis 2 
longis equalibus glochidato-barbatis deciduis coronata. Pappus 0. Recept. 
planum paleaceum: pale atro-fuscescentes, lineari-lanceolate, acute, ni- 
tide. Don MSS. 
f 
An unpublished biennial species, native of Mexico ; 
lately raised from seed communicated by Don José Payon 
to Mr. Lambert. 
AAQ 
