172 WEEDS AND USEFUL PLANTS. 
‘acle flat, mostly alveolate, so agg a usually compressed. 
Papp simple of capi illary bris rymbose, paniculate, or 
rays purple, white, or blue. 
1 A. ericoi'des, L. tin much branched,—the simple leafy 
branchlets or peduncles racemose and mostly unilateral on the virgate 
spreading branches ; leaves igen raid, —the radical and lower cauline 
ones oblanceolate or oblong-spatulate, tapering to a —— petiole,— 
te, acute at each .€ 
small, numerous, solitary on the branchlets ; rea hemispheri- 
- or subtarbinat, —the scales loosely imbricated, tte re acute, 
spreading at apex. 
Erica, ok HeaTu-LIKE ASTER. 
ae te or 4 inches 
wis, Goan to 
-leaves 
ri 
ae with pale ssaetiies tis, J: ofte n becoming reddish pint 
rai mers ils ; old fie elds, caneetae eee shiva ughout the United States. FI. eae 
Tr. . October. 
Obs. Many species of this genus meet the pie fi the farmer, in the 
latter part a! summer, in his woodlands, low grou borders of thick- 
. ets, &c., some of which species are quite scceray but the little 
Roky a one ‘are described (which, I believe, has not acqtired a common 
name,) is almost the only one which invades ou: tocegighe to any material 
extent. In thinnish old fields, it sometimes becomes an abundant—as it 
is always a Mptaee ee eed. Good culture, ey ain the soil, 
soon cause it 
a 
known as ‘ ‘ Germa n Asters,” ‘the rays 25 not Ciccred, but the disk 
flowers are very ope There are over 30 species of native Aster in the 
Northern States, sd: many more at the South ; some of these are quite 
showy in cultivation. 
5. ERIG’ERON, L. Frea-pane. 
[Greek, Er, spring, and Geron, an old man ; the plant being hoary in spring-] 
— many-flowered, somewhat hemispherical; ; ray-florets very nume- 
and usually in more than one series, pistillate——those of the disk 
‘eholar , pe Scales of the involucre m ostly narrow, in a 
nearly single series. Receptacle (Dake. punctate. Akenes com- 
se! 
acomoniien pappus of subulate scales. 
* Pappus single ; rays inconspicuows, white. 
