-f^- 



104 



riANT^E WRIGHTIANiE. 



YI. 



CxVLYCOSERIS, Nov. Gen. 



Capitulum liguliflorum multiflorum. Involucrura campanulatum, duplex, inte- 



riiis c squamis circa 12 lineari-lanccolatis margine scariosis subuniseriatis ; exterius 



calycnliformc, e squamis totidcm brevibus laxis. Receptaculura planum, paleis 



tcnuissimis piliformibus intcr flores onustum. Achenia conformia, fusiformia, crasse 



5 - 6-costata, muricato-scabra, apice attenuato-rostrata. Pappus duplex ; exterior 



coroniformis pcrsistens ; interior pilosus, copiosus, setis mollibus niveis vix scabris 



basi in annulum concretis caducis. — Herba monocarpica, h.umilis, glabra; caule a 



basi ramoso ; foliis pinnatipartitis, lobis rhachique linearibus ; pedunculis brevius- 



culis monocephalis ante anthesin nutantibus cum involucri basi hispido-glandulosis ; 

 floribus roseis. 



Calycoseris Wrigiitii. (Tab. XIV.) — Stony hills around El Paso, abundant ; 

 March, April. (1423.) — Plant about a span high, from a slender simple root, 

 branched from the base ; the branches or steras ascending, sparsely leafy, sparingly 

 setosc-glandular towards the summit. Leaves glaucescent, linear, and with few or 

 several sprcading linear lobes from 2 to 5 lines in length ; the terminal lobe pro- 

 longcd. Involucrc half an inch long, externally sparsely beset, like the peduncle, 

 with nail-headed glandular seta3. Ligules pale rose-color, markcd with deeper pur- 

 ple underneath, lialf an inch long. 

 flower subtendcd by a delicate capi 

 w^hich may perhaps be compared witli those of the receptacle of Andryala, are per- 

 sistent, though rather fragile, and as long as the achenia. Achenia all alike, 2i 



long, terete, witli 5 or 6 broad ribs sej^arated by narrow grooves, tuberculate- 

 hened, tapering gradually into a thickish beak whiclf is rather shorter than the 



Receptacle flat, about 25-flowered, areolate, each 

 ilary bristle in place of a palea: these bristles, 



lines 



any of De Candolle's subtribes, as they now stand. D 



^ax^Axiig 



peculiar character of the pappus, Calycoseris would fall into Eodigiese, if the s 

 of the receptacle be taken for true palese. But if they are of the same nat 

 as those of Andryala, the genus might be i^Iaced near Crepis and Malacoth 

 However, it is hardly worth while to speculate upon its appropriate place until 



holc tribe has underg 



Malacothrix Fendleri : nana, glabrata ; caulibus e radice exili plurimis dif- 

 fusis; foliis junioribus parce arachnoideis, radicalibus runcinato-pinnatifidis den- 

 tatisve lobis cuspidato-mucronatis, caulinis paucis linearibus, summis integerrimis ; 

 acheniis fere cylindricis a?qualiter multicostatis apice manifeste cupulato intcger- 

 rirao ; pappi seta unico validiore lajvi subpersistente, ca'tcris scabris inferne barbel- 

 lulatis caducis. — M. sonchoides, Gra^, Pl FendL p. 113, non Torr. ^ Gray.— 

 Stony hills around El Paso, &c., abundant; March, April. (1424.)— The habit 



body of the achenium, its dilated apex crowncd with the hyaline crateriform outer 



pappus, the edge of which is even, but multidenticulate. Inner pappus pilose, j 



bright white, consisting of copious and equal, scarcely denticulate, soft bristles, all 



rathcr firmly united into a ring at the base and deciduous together. — This wx41- 



marked genus (as well as Anisocoma, Torr. ^ Gray in Bost. Jour. Nat. Hist. 5. t. 



13, which agrccs with it in having an exterior coroniform pappus) will hardly find 



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