An Encyclopedia of Horticulture. 



137 



Aster — continued. 



A. amygdalinus (Almond-leaved). J!. -heads white; involucre 

 closely iiiiliiirated. August. I. lanceolate, narrowed at ba-se, 

 acuniinated. scabrous at edge. Stem simple, corymbose at end. 

 h. 2ft. North America, 1759. 



A. argentens (silvery).* Jf. -heads purple. August. L oblong- 

 lanceolate, silky, sessile. Stem slender, decumbent, loosely 

 branched ; bninches and branchlets one-headed, k. 1ft. Nt)rth 

 America, 1801. 



A bellidifloms (Daisy-flowered). _ff. -heads f>Ale red; involucre 

 with spreading scales. September. I. amplexicaul, narrow- 

 luncoohite, scjibrous above, lower sub-serrated. Stem much 

 branchetl. h. 3ft. North America. 



A Bigelovii (Bigelow's).* _fl. -heads corymbose, 2!lin. diameter, 

 ray-florets lilac, disk yellow. Summer. /. scabrous pubescent, 

 oblong-spathulate ; cauline ones amplexicaul, ovate-oblong, cre- 

 nate, obscurely-toothed h. 2^ft. Colorado, 1878. A very hand- 

 some biennial species. SVN. A. Town-ihemli. 



A blandus (charming). Jl. -heads pale purple; racemes scarcely 

 longer than the leaves. October. I. sub-amplexicaul, oblong- 

 lanceolate, acuminate, sessile, smooth. Stem pyramidal, h. 2ft. 

 North America, 1800. 



A. canescens (hoary). Ji. -heads pale purple; involucre imbri- 

 cated, very acute, longer than di.sk. September. /. linear. 

 Panicle corymbose, much branched, leafy, h. 2ft. North America, 

 1812. Biennial or perennial. 



A cassiarabicus (Arabian Cassia), jl.-heads pink; panicles 

 corjTiibose. September. I. ovate, acute, serrateil, tapering at the 

 petioles. Plant erect, pilose, h 2ft. Rus.sia, 1834. 



A caucaslcus (Caucasian).* 

 involucre nearly equal, linear, 

 h. lit. Caucasus, 1804. 



A Ciliatus (ciliated), jl. -heads white. September. I. ciliated ; 

 cauline ones linear-lanceolate, nerved ; those of the branches very 

 short lanceolate, three-nerved. Stem branched, downy ; branches 

 downy, h. 3ft. North America. 



A conclnnus (neat).* ji. -heads pui-ple ; involucre closely imbri- 

 cated. October, l. sub-amplexicaul, lanceolate ; lower ones sub- 

 serrate, smooth. Stem simple, panicled at end. h. 2ft. North 

 America. 1800. 



A concolor (one-coloured). Jl. -heads purple ; raceme terminal. 

 October. /. oblong-lanceolate, hoary on each side. Stem simple, 

 erect, downy, h. 1ft. North America, 1759. 



A conyzioides (Conyza-like). Synonymous with Seriocarpiis 

 coiujzwides. 



A COrdifoliUS (heart-leaved). fl. -heads blue, small, disposed in 

 crowded i-acemes, which are slightly drooping. July. I. cordate, 

 pilose beneath, finely serrated, stalked. Stem smoothish, 

 panicled ; panicle spreading, h. 2ft. North America, 1759. 



A coridifoUns (Coris-leaved). fi. -heads pale blue. October. 

 I. very numerous, linear, blunt, reflexed, hispid at edge. Stem 

 branched, diffuse, smooth ; branches one-headed, h. 1ft. North 

 America, 



fl. -heads purple, solitary ; scales of 

 July. l. ovate, sessile, scabrous. 



Fio. 179. Aster corymbosus, showing Habit and Flower-head. 



A corymbosus (corymbose), fl. -heads corymbose, about lin. 

 in diameter; ray-tlorets few, narrow, white; disk-florets pale 



Aster — continued. 



yellow. Autumn. I. 5in. long, cordate acute, lobed at the 

 base, coarsely toothed. Stems brittle, blackish purple, h. 2ft. 

 to 3ft. SvN. Biotia eonjmbosa. See Fig. 179. 



A. diflusus (diffuse), fl. -heads white; involucres imbricated. 

 October. I. elliptic-lanceolate, equal, serrated, smooth. Branches 

 spreading. Stem pubescent, h. 2ft. North America, 1777. 



A. Douglasii (Douglas's).* fl.-heads purple; involucral scales linear 

 or spatliulate-linear, loosely imbricated. August. I. lanceolate, 

 acute, entire, or rarely serrate, mostly tapering at the base. Stem 

 smooth, slender, paniculately branched, leafy, /t. 3ft. to 4ft. 

 California, &c. 



A dracmiculoides (Tarragon-like).* fl.-heads yvhite, about lin. 



across, disposed in dense cymose clusters ; involucre imbricated. 



September, October. I. linear, acuminated, entire ; lower ones 



liuear-lanceolate, sub-serrate. Branches corymbose. A. 3ft. 



North America, 1811. A very handsome species. 

 A. dumosus (bushy).* fl.-heads white, about iin. across, disposed 



in broad clusters ; involucre cylindrical, closely imbricated. 



October. I. linear, glabrous ; those of the branches very short. 



Branches panicled. h. 2ft. North America, 1734. 

 A d, albus (white).* fl.-heads quite white, and rather smaller 



than those of the species. North America. 

 A d. violaceus (violet), fl.-heads violet-purple. North America. 

 A elegans (elegant), fl.-heads blue, small ; corymb contracted, 



drooping; scales of involucre oblong-cuneate, blunt, squarrose. 



September. I. scabrous ; cauline ones oblong-lanceolate, acute ; 



radical ones obhmg, stalked, h. 2ft. North America, 1790. A 



very elegant sjiecies, having a graceful habit. 

 A eminens (fiuiiifut). fl.-heads light blue. October, t. linear- 

 lanceolate, acuminate, scabrous at edge ; lower ones sub-serrated. 



Stem panicled ; branches one-headed, h. 2ft. North America. 



Fia. 180, Aster ericoides. 



A ericoides (Heath-like).* fl.-heads white ; involucre squan-ose, 

 leaflets acute. September. I. linear, glabmus ; those of the 

 branches subulate, close together ; and those of the stem long. 

 h. 5ft. North America, 1758. A very pretty species. See Fig. 180. 



A. florlbundus (many-flowered).* fl.-heads light purple. Septem- 

 ber. I. sub-amplexicaul, lanceolate ; lower ones serrated. Stem 

 smooth ; branches corymbose, k. 4ft. North America. 



A follosus (leafy), fl.-heads pale blue ; involucre imbricate. 

 September. I. linear-lanceolate, acuminate, narrowed at each end. 



T 



