172 COMPOSITAE. DT80DIA. 



im^ sparsis, .1 capitalo remotis, CapJtula bemisphaerica, neglecto radio -7 lin. diametro 

 leoenlia, involucri Bquamae glaberrimae laeves, basi incrassato-carlilagineae, lupeme 

 membranaceae, apice latae obtuaiasimae scariosae, dono glandnlii 1 4 majuscnlis 

 onustae, ligulae B, lamina ovata obtusissima, Bosculi disci numerosi, Envotaoram paullo 

 Bnperantes, corolla tubulosa, basi breviter attenuata, fauce elongalo-lubulosa, denlibus 

 .1 lanceolalis acuminatis, genitaiia inclusa, >i\li rami apice penicillati, achaenia lineari- 

 turbinata, basi pedicello brevissimo Iii~>i >i< l> > stipitata striata sparse puberula, apice Irun- 

 cata, pappi squamellae circiler 20, basi breviter coalitae, oltra medium in setai barbel- 

 latas fissae. — Crescil in Californiae „Baj "i Magdalena". 



2578. CLOMEWOCOMA Caaaini. 



(DC. Prodr. V. 641. — Wlprs. Repert, bot Byst II. 0-23. [errore typogr. Clemenocoma 

 1. CL. MONTANA Hth. Plant, Bartweg. p. 80. 110. 50-2. - [Wlprs. I. e/ Gardn. Sertum 

 planL t. 37. — Foliis ovatis acutis serralis, basi cuneatis integris vel incJso-lobatis, pe- 

 tiolo basi lobulis setiformibus aucto; involucri squamis obtusis fimbriatis. ^. Herba 

 perennis, basi ut videtur decumbens. Rami Qoriferi herbacei erecti simpKces vel parum 

 ramosi striali glabri vel vix pilosiusculi, Imsi foliati, folia bipollicaria glabra, glandulis 

 nigris conspersa, lobuli accessorii setiformes ulrinque 1— '2 ad basin petioli, accedunt 

 etiam nonnumquam lobuli l— 2 lanceolati acuti ad basin limbi, pcdunculi elongati mo- 

 nocephali l 2-bracteali, apice parum incrassati, capilulum magnitndine Tagetit erectae 

 lale campanulatum, involucri squamae interiores biseriales imbricatae subaequales ob- 

 longae, apice breviter fimbriato-crenalae glabrae, dorso glandulas paucas lineares vel ob- 

 longas gerentes, basi cailoso-incrassatae sed liberae, accedit series exterier Bquamarnm 

 5—0 multo minorum, receptaculum conicum paleaceum, paleis anguslis, apice setifor- 

 mibus, marginc interdum laceris, achaenio parum longioribus, ligulae 12—15 obovato- 

 longac obscurc ct obtuse Iridenlatae, ex sicco auranliacae foemineac fertiles, corollac 

 disci concolorcs, apice quinquefidae, styli rami truncati, cono brevi superati, acbaenia in 

 radio et disco consimilia siriata scriceo-villosa, pappus corolla disci parum brevior con- 

 slans e squamis 10, fere usque ad basin seloso-multilidis. — Crescit in Gualcmalac 

 montibus Aceytuno. 



2579. UYMEIVATIIERCM Cassini. 

 (DC. Prodr. V. 041. et VII. 292. - Wlprs. Repert. bol. syst. II. 023.*) 

 1. H. CANDOLLEAISl.N Hook. et Arn. Journ. or bot. III. 320. - Perenne pubescens: ra- 

 mis simpliciusculis ; foliis opposilis scssilibus ad basin subpalmalis pinnatiparlilis, lobis 

 subquinis spinoso-filii"orniil)us rij. r iilis integerrimis, inferioribus minoribus, lerminali elon- 

 galo; pcdunculis elongalis monoccphalis nudis; involucro biseriali 14— 20-dcntalo; pappi 

 uniserialis squamellis 10, omnibus basi mcmbranaceis, apice (rifidis, lobo medio seti- 

 formi scabro, laleralibus brevibus mcmbranaccis. 0\. — II. Belenidium DC. 1. c. VIL292. 

 — Belenidium Candolleanum Arn. mss. — Pectit acicularu D. Don mss. — Crescit in 

 Chili, in alpibus ad Mendozam. 



2579/i. RIDDELLIA Nutt. 



(Nult. Transaci. of the Americ. philos. boc. [New SerJ \ II. 371. — Endl. Ccncr. plant. 

 Suppl. II. p. 44. — Meisn. Gener. plant, vascul. II. 302.) 



1. It. TAGETINA Natt. I. c. - (Wlprs. ReperL bot. syst. II. 023.-; - Torr. et Gr. Fl. 

 N. Am. II. 302. — Herba elegans ramosa aromaiica (habitu Zinniarum), folia alierna 

 obiongo-iinearia subtomentosa, ramuli corymbosi 3— 5-cephali, radii flosculi lutei in co- 

 lorcm auranliacum transeunles, involucrum dense sericeo-pilosum. — Crescil in Amc- 

 rica borcali (Rocky mountains towards ihe sources of Ihe Plalle . 



2579/2. SOLEXOTHEC l Nutt. 



(Nult. Transact. of the Americ. philos. soc. |Ne\v Scr.J VII. 371. — Endl. Gener. plant. 

 Suppl. II. p. 44. — .Alcisn. Gener. planl. vascul. II. 302.) 



1. S. TENELLA Nutt. I. c. 372. - (Wlprs. Rcpert. bol. syst. II. 024.*) - Herba annua le- 

 nella 3— 4-pollicaris glaberrima, radix simplex, folia inferiora opposita, superiora alterna 

 profunde pinnaiilida, segmenlis 2— 3-jugis linearibus serratis vel apice tridentatis semi- 



