Botany and Zoology. 275 
culum convexum, paleis navicularibus persistent tibus achenia amplec 
tentibus. Corolla fere Helianthi.. Styli rami elongato-subulati, hivpidi. 
Acheenia compresso-plana, emarginato-obcordata, glabra, immarginata, 
ealva.—Herba valida perenni, strigosa, corymboso-ramosa ; foliis om- 
nibus. oppositis. deltoideo-ovatis vel subhastatis inciso- -dentatis tripliner- 
vils petiolatis, petiolis basi appendicibus foliaceis interpositis connatis 5 
unculis solitaris.elongatis monocephalis lores radii et disci flavi. 
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:PPEL 
proper to append here the characters of another unpub- 
lished. Helianthou genus, which is even more closely allied to Encelia 
(although well distinguished by its pappus), and is also snnlneone to 
Agarista 
Genus Gera, Torr. § Gray, Fl. N. Amer, ined. 
Capitulum multifiorum heterogamum ; fl. radii (circ, 15) ligulatis, 
neutris, disci tubulosis hermapbroditis. Involucrum Jaxe imbricatum 
2-3 seriale, squamis lineari-lanceolatis herbaceis. Receptaculum 
planum, paleis hyalinis oblongis achenia semi-amplectentibus deciduis 
Onustum. Ligule cuneiformes, basi pilose: corolla disci) fauce dila- 
tat o-cylindrica: é tubo brevi villoso, 5-dentate. Styli rami in appendi- 
Pp 
rgines preesertim) villosissima. . Pappus bisquamellatus, squamellis 
€X marginibus achzenii ortis lineari-aristiformibus basi villosissimis co 
rollam adzequantibus.—Herba annua? hirsuto cana}; caulibus. basi aa 
ic 
Pedunculos paucos 1-2-cephalos gerentibus. | Involucrum ae aie 
sum, lace radiidiscique flav : ' 
nescens. sl api Arcache iste Nomen e  yegacds 
ob ok tpg canum necnon comam achnii argenteam sumptum, 
ut contrarium generi Nour Agariste, DC, ss mythologice nympha 
erat venustissima 
Genus Acassizia, Gray §- Engelm., Pl. Lindh. ined. (non Chevets 
nec Spach. 
Capitulum globosum, eee radiatum 5 tiguiis foeminiis pune 
aa Involucrum disco brevius circa biseriale ;, squamis 
Oribus linea oblongis, seeing lebineieae vel obtusa iolingen peters 
te, intimis hina -acuminatis. Receptaculum globosum a 
ray valde dentatis fimbrilliferis. Ligule cuneaiz, fag 2 
irregulares, tubuloso-difformes, vestigia staminum gerentes. Co- 
es disci Gaillardie, denuiven triangulari-lanceolati i 
ligularum lineares, subulato-apiculati; fl. disci, ad basin. meveysicis 
revissime nude clavato-obtuse penicellatt ! Ac cheenia turbinata, se 
ceo-villosissima. Pappus radii et disci conformis, e paleis Fania 
Ovatis uninerviis constans, nervo in aristam capillarem corollam ad- 
equantem longe pr ucto.—Herba biennis, acaulis; radice fusifor- 
pos pc varie 1% 2-pinnati idis, nune sinuatis lyratisve; scapo 1-2. 
ci toto. nudo lo.  Capitulum _peoeatnaed Fak 
‘tei iabvéélecien, | disci flavi et purpurei, radii rubescent 
