164 AST 
and downy ;) flowers racemed; petals linear; germs puoescent; 
segments of the calyx glabrous. 
19--12. ARUM. 
Triphyl’lum, (Indian turnip, wild turnip, wake robin, O. p. g. & wi 
M. 2) sub-caulescent; leaves ternate; leafets ovate; acuminate, 
spadix club-form ; spatha ovate, acuminate, peduncled with the la- 
mina as long as the spadix. One variety, virens, has a green spa- 
tha, another, atropurpurewm, has a dark purple spatha; another, al- 
bum has a white spatha. 1—3. f. 
(18—5. ASCLEPIAS. (From Zisculapius, the Founder of 
Medicine.) 
1. Leaves opposite. 
Syri’aca, (common milkweed, O. w. p. Ju. 2) stem very simple; 
leaves lanceolate-oblong, gradually acute, downy beneath; umbels 
sub-nodding, downy, 3 to five feet high; flowers in large, close clus- 
ters, sweet-scented—pollinia are fly traps. 3—5. f. 
Incarna’ta, (O. r. Ju. 2.) stem erect, branching above, downy; leaves 
lanceolate, sub-downy both sides ; umbels mostly double at their ori- 
gin; the little horn of the nectary exsert. A variety pulchra is more 
hairy. Var. glabra, almost glabrous. Var. alba, has white flowers. 
Damp. 3. f. 
6—1. ASPARAGUS. (A Greek name.) 
Exotic. 
 Oficina’’lis, (asparagus, Ju. 2) stem herbaceous, unarmed, sub-erect, 
terete; leaves bristle-form, soft; stipules sub-solitary. Naturalized 
in the northern and southern districts. 4. f. 
17—2. ASTER. (A Star.) 
Leaves entire. 
Linariifo’lius, (star-flower O. p. y. Au. 21) leaves thick-set, nerve 
tess, linear, mucronate, dotted, carinate, rough, stiff, those on the 
branches recurved ; stem sub-decumbent; branches level topped, 1- 
flowered ; calyx imbricate, of the length of the disk; stem rough, 
purplish. 
Multiforus, (0. w-y. Au. to Nov. 2,) leaves linear, smoothish; stem 
very branching, diffuse, pubescent; branchlets one way; calyx im- 
bricate; scales oblong, scurvy, acute. ’ 
Cya’neus, (O. b-p. Au. 21) leaves linear-lanceolate, clasping, smooth ; 
stem wand-like-panicled, very glabrous; branches racemed ; scales 
of the calyx lax, lanceolate, equalling the disk, inner ones coloured 
atthe apex. 3—4, f. Flowers many and large. This is the hand- 
somest of all asters. 
Leaves more or less cordate and ovate, serrate, or toothed. 
Panicula’tus, (O. b-p. Au. to Nov. 2|) leaves ovate-lanceolate, subser- 
rate, petioled, glabrous; radical ones, ovate heart form, serrate, 
rough, petioled; petioles naked; stem very branching, glabrous; 
7 
