Oichoriacec. ] LXXXVIII. COMPOSITAE. 513 
tentibus. Hue pertinent P. aspi; , Linn. (Leontodon, Lher. Stirp. t. 82) ; P. aculeatum, Vahl. ; 
Helminthia spinosa, DC. Ic. PL, Gall. Rar. t. 21, et H. conoa; Boiss. Voy. Esp. t. 116 (7. lusitanion, 
Welw.). 
HxrwiwTHIA, Juss. Gen. Y70, DC. Prod. vii. 132, Reichb. Ie. Fl. Germ. t, 1818, est P. echioides, 
Linn., involucri bracteis 8-5. cose amplis foliaceis, interioribus basi utin Medieuwsia carinato- 
coneavis iner tisque, ach p is rostro longo.tenuissimo fragili, pappo tenuissimo cum 
rostri parte superiore caduco. Linnzus ab hae specie characterem generis sumpsit, etei P. Aieracioi- 
deii aliasque inclusit. 
Heliminthia Balanse, Coss.et Dur., involuero P. eohioidis, differt achwniis teretibus — ex- 
 terioribus 2-seriatis, pappo eum rostro toto tenuissimo. ab achsnio ipso artieulatim 
achseniis intimis tenuibus sepe vacuis pappo rostroque persistentibus. 
735. Crepis, Linn. Gen. n. 914. —Capitula homogama, liguliflora, Involucrum cylindra- 
ceum campanulatum v. basi demum ampliatum, bracteis intimis. l-seriatis subszqualibus 
basi post anthesin carina incrassata plus minus induratis v. immutatis, exterioribus 
pauciseriatis brevibus linearibus v. rarius latioribus.v. gradatim increscentibus.  Recep- 
taculum planum v. rarius concavum, nudum v. breviter. fimbrilliferum; ^ Corolle 
ligulate, apice truncatze 5-dentate ; anthere basi sagittatee, auriculis acutis v. breviter 
setaceo-acuminatis. Styli rami tenues,  Achzenia oblongo-linearia, subteretia v. 
óbtusangula, oo- (10-20-) costata, basi parum nunc brevissime contracta, apice constricta 
attenuata.v. in rostrum producta, costis prominulis levibus, v. rarius minute rugosis. 
Pappi sete sepius copiose, tenues simplices albzeque.— Herbs. perennes v. annus, 
glabrz v. scepius pilosulce v. hispidsz, caulibus nunc erectis elatis foliosis nunc scapi- 
formibus v. ramosis aphyllis v. paucifoliatis. Folia radicalia v. alterna, caulina ssepe 
auriculato-amplexicaulia, integra v. scpius grosse dentata v. pinnatifida, rarius tenuiter 
multisecta. Capitula magnitudine varia, pedunculata, solitaria v. varie paniculata. 
Corolle flave v. rubre. — Achsenia glabra. i 
Species ad 130, per hemisphsrium boreale late disperse, in orbe vetere frequentissime, in 
America pauciores, perpaues usque ad regiones australes tropicas extense v. in transtropicis inqui- 
ling. DC. Prod. vii. 160. — Walp. Hep.ii. 697, 993; vi. 307; Amm.ii. 972 ; v.328. Boiss. Diagn. 
ser. 2. iii. 100. 4. Gray in. Proc. Amer. Acad. vi. 553. 
Genus aecepimus quale a Kochio Schultzio aliisque auctoribus recentioribus limitatur, additis 
speciebus: nonnullis in genera 1monotypica ob pappi indolem separatis. Primo intuitu in cohortes 
tres gradus generici dignas separabile videtur, sed species plurimse observantur intermedie y. am- 
biguge et maluimus genus in integrum servare. A JSonoho Lactucaque differt ach rfecti 
haud compressis; ab Hieraeio, acheniis superne v. summo apice plus minus contractis attenuatis v. 
rostratis nee truncatis, indumento nunquam stellato, aliisque notis. - 
Sectiones sequentes ab auetoribus nonnullis generice v. subgenerice distinguuntur. 
A. Banxnausn, Mench, Meth. 037 et Auct. plur. (BankXUsENIA, Hoppe in. Flora, 1829, 512). 
Involueri bractec interiores basi sepissime post anthesin carinato-inerassate. ^Achsnia plurima v. 
omnia in rostrum producta. JC. Prod. vii. 152.  Walp. Rep. ii. 697; vi. 807; Ann. i. 462 ; ik 
970; v. 326. 
1; Parva, Cass. Dict. xxxix. 893, est. C. albida, Jacq. Ic. Rar. t. 164, Reichb. Ie. Fl. Germ. t, 
1443, involueri bracteis exterioribus scarioso-marginatis gradatim erescentibus; achseniis exterioribus 
breviter, interioribus paullo longius rostratis. 
2. AxrnocouvrRUM, Heichb. Ic. Fl. Germ. xix. 89, £. 1432 (Bixxomia, Sch. Bip. in Herb. et Winck, 
Jahrb. Pharmac. iv. 155, ez eod. in. Flora, 1859, 70), est B. alpina, DO., bracteis  estütinribns 4 
volueri latis searioso-membranaceis oc-seriatis quam interiores tamen multo brevi d p 
demum insigniter coneavo. 
3. LacosEgis, Link. Euwn. Hort. Berol. i. 989 non. Bieb. ( Barkhausie sect. Lepidoseris et. ZEgo- 
seris, DC.), species fere omnes ineludit quibus aclizenia omnia subsequaliter sepiusque longe rostrata, 
Involueri bractec exteriores in D. scariosa, Reichb., affinibusque iis AntAochytre similes nisi minores, 
in C. zarazacifolia, Thuil., affinibusque minores angustioresque scarioso-marginate, in C. fétida. 
Linn. Reichb. Ie. Fl. Germ. t. 1434, affinibusque adhuc angustiores vix marginats sed differentice 
ad sectiones condendas haud. sufficiunt. Waldst, et Kit. Pl. Rar. Hung. t. 43. DC. Ic. Pl Gall. 
Rar. 1. 19. Brot, Phyt. Lusit. 1; 26. Heichb. Iconogr. Bot. t. 18, 40 ; Ic. Fl. Germ. t. 1435, 1487. 
4. Psawuosznis, Boiss. Diagn. Pl. Or. xi. 62, Walp. Ann. ii. 971, est C. senecioides, Delile Fl. Eg. 
- t. 42, achzeniis omnibus ratione rostri brevibus crassisve, apice tamen in rostrum attenuata 
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