230 Mr. D. Dow's Descriptions of new Genera and Species 
lanceolatà acutáà terminate, basi biaristate : aristis line- 
ari-lanceolatis, deorsüm attenuatis. Stigma bifidum: Jobis 
lineari-cuneatis, truncatis, plano-convexis, minute papillosis, 
revolutis. Achenia eateriora cuneato-oblonga, -papilloso- 
scabra; flosculis veró majoribus (interioribus) longiora, 
subtetragona. Pappus difformis ; achenio exteriori brevis- 
simus, setaceus, denticulatus, basi solutá caducus, fusco- 
cinereus : interiori veró elongatus, plumosus, niveus, invo- 
lucellum superans, subpersistens, radiis basi crassiore con- 
ferruminatis, apice mucronulo simplici. 
Herba habitu omninó Echinopsidis, land nived mollissimá densé 
obruta. Caulis cubitalis, erectus, ramosus, teres. Folia al- 
terna, basi auriculatd amplexicaulia, palmaria, runcinato- 
pinnatifida, viv ultrà semunciam lata, supra parciüs lanata : 
segmentis rhombeo-ovatis, dentatis, margine recurvis, mucro- 
nulo reflexo-adpresso terminatis. Capitula spherica, pedun- 
culata, corymbosa. Pedunculi erecto-patuli, teretes, lanati, 
pollicares v. sesquipollicares. Involucella nudiuscula, nitida, 
sanguineo-colorata. Flosculi rosei. 
1. P. spherocephalus. 
In Peruvid.. Ruiz et Pavon. ©. 
The capitulum | in this genus consists of à congregation of 
smaller capitula, each containing two flowers. ‘At is precisely 
analogous to that of Echinops, and may be compared to the 
compound umbel in other plants. Expansion first takes place 
in the florets of the apex of the capitulum, as Mr. Brown has 
already remarked in that of the before-mentioned genus. The 
compound capitulum, the two unequal florets, each of which is 
furnished with a distinct kind of pappas, sufficiently distinguish 
this genus from the following. 
b. PAPPOo 
