394 DESCRIPTIONS OF NEW SPECIES 



as long as the florets. A very distinct and peculiar species, and apparently rare, growing in the 

 sands of the sea-coast. Flowering about May, 



^. Callichroa. (Genus Callichroa, Fisher and Meyer.) 



Receptacle flat, villous, or fimhrilliferous. Pappus of about twenty-jive setaceous, 



scabrous palea in a single series. 



Obs. So nearly are these plants allied to the preceding section, or true Ma- 

 daroglossa, that it is nearly impossible to distinguish M. hirsuta from M. ele- 

 gans in any way but by the pappus. 



Madaroglossa * hirsuta; hirsute, decumbent, much branched from the base; 

 radical leaves pinnatifid, linear-lanceolate; stem leaves amplexicaule, incise, 

 the uppermost entire; pedicels somewhat glandular and villous; rays eight to 

 twelve; pappus simple, subhirsute, shorter than the achenium. 



Hab. St. Barbara and Monterrey, Upper California. Spreading sometimes one or two feet on 

 the ground, with decumbent, ascending branches. Rays longer than the disk, the extremities white, 

 the base yellow. The whole plant has an aromatic scent, somewhat similar to that of the garden 

 Marygold, {^Calendula.) Achenia of the disk sericeous, with a rigid pappus nearly its length; 

 the floret also pubescent, and partly hirsute on the border. 



Madaroglossa * angustifolia; subhirsute and glandular, nearly erect; leaves 

 linear, incisely pinnatifid, sessile, above entire; pedicels glandular and villous; 

 rays eight to twelve; pappus simple, subhirsute, as long, or longer than the 

 achenium. , 



Hab. With the above, which it greatly resembles, but is smaller, with narrower leaves and a 

 different pappus. Rays also partly white and yellow at has?, 



Subtribe VI. ANTHEMIDEtE. 



Division i. Euanthemide^. (Decand.) 

 Achillea lanulosa, Nutt. in Journ. Acad., 1. c. 



Hab. Frequent in the valleys and pla,ins of the Rocky Mountains, and in Oregon. 



Division ii. Chrysantheme^. (Decand.) 

 Egletes Arhansana. Leucopsideum Arhansanum, Decand., Vol. VL, p. 43. 



Hab. Banks of the Arkansa. This plant appears to be wholly congeneric with E. Domingensis: 

 differing principally from that species by the greater length of the rays. 



