198 Mr. D. Dox’s Descriptions of new Genera and Species 
bristly hairs. The flowers are also larger; and the leaflets of the 
involucrum nearly twice the number, and arranged in a double 
series. The genus, which appears to be a very natural one, is 
essentially distinguished from Trixis by the naked receptacle. 
Proustia. Lag. et Dec. 
Receptaculum pilosum. | Flosculi 5. Pappi radiis penicillatis. 
Involucrum polyphyllum, imbricatum. 
 Involucrum tubulosum, polyphyllum : squamis ellipticis, integer- 
rimis, multiplici serie adpresse imbricatis. Receptaculum 
‘parvum, copiose pilosum. Flosculi 5, hermaphroditi, bi- 
labiati; labio exteriore ligulato, tridenticulato, 4-nervio, 
patulo, demüm revoluto; interiore profundé bipartito : 
segmentis lineari-lanceolatis, binerviis, obtusiusculis, revo- 
lutis, primüm conglutinatis. Antherg in tubum connate, 
basi bisetz : setis simplicibus v. ramulosis : appendicula ter- 
minalis linearis, acutiuscula, cartilaginea. Stigma bilobum : 
lobis apice truncatis, papilloso-pruinosis, recurvis. Achenia 
cuneata, compressa, pilosa v. teretiuscula et papillosa : 
disco epigyno dilatato. Pappus persistens : radiis duplici 
ordine copiosis, apice penicillatis. 
Aghusculas vet 'rutices ramosissimi.. Rolie ais indivisa. Flores 
* Floribus po. purpureis, ache co orato. 
| Propriæ. Soe ea ee ee 
1. P. pyrifolia, foliis peliointis cordato-rotundis eralibame sub- 
tüs tomentosis. 
minutia. uio. Lag. et Dec. in Ann. Mus. 19. p. 70. t. 4. 
! pe Talcahuana rime "uie ad COP" 
tempore — A 
Arbuscula erecta, ramosissima, 
. Rami 
