ACER 



ACHILLEA 



205 



1:86. — A. Bdscii, Spach. Probably hybrid. A. monspcssulanum X 

 tataricum. — .4. 6rei>t7o6um, Hesse^A. parviflorum.— -4. cxsium. 

 Wall. Allied to A. insigne. Tree; Ivs. 5-lobed, glabrous, whitish 

 beneath, 6-S in. acro.s.s; lobes acuminate, obtusely crenulate-ser- 

 rate. Himalayas. Not hardy N. — A, capillipeH, Maxim. Allied to 

 A. rvtfinerve. Tree, to 30 ft.: Ivs. 3-lobed, glabrous beneath, red 

 when unfolding, 3V2--'> in# long: fls. on slender stalks about J2in. 

 long. Japan. S.T.S. 1:16. Not perfectly hardy at the Arnold 

 Arboretum. — .4. cauddlum, Rrandis=A. acuminatum. — ,4. cin- 

 erdscens, Boiss. Shrub or small tree: Ivs. 3-lobed, '3-2 in. long. 

 Similar to A. monspcssulanum. Persia. — .4. coriaceum, Tsch. 

 {A. creticura, Tratt. A. polymorphum, Spach). Probably A. 

 creticum Xpseudoplatanus. — .4. crds»ii>es, Pax. Suppo.sed to be a 

 hybrid between A. obtusatum and A. pennsylvanicum. — ,4. 

 crdssipes, Hesse=A. parviHorum. — .4. crcticurn, Linn. = A. ori- 

 entale. — A. crHicum, Tratt. =A. coriaceum. — .4. Dieckii, Pax (A. 

 platanoidea var. integrilobum, Zabel). Similar to A. platanoides, 

 but lobes entire; probably A. Lobelii X platanoides. — A. distylum, 

 Sieb. & Zuoo. Allied to A. oblongum. Tree: Ivs. ovate, 5-7 in. long, 

 cordate, crenately serrate, light green and lustrous beneath. Japan, 

 G.C. II. 15:499. S.I.F. 2:41. J.H.S. 29:76.— .4. Durettii, Pax. 

 Probably A. monspessulanum X pseudoplatanus. — .4. eridnthiim, 

 Schwerin. Allied to A. caudatum. Small tree: Ivs. 5-lobed, 2-3 .V2 

 in. long, lobes broad, unequally and simply serrate, nearly glabrous 

 beneath: fls. with densely villous disk. W. China. S.T.S. 1:80. — 

 A. Fdrgesi, Franch. (A. Isevigatum var. Fargesii, Veitch). Allied 

 to A. oblongum. Tree, to 30 ft.; Ivs. coriaceous, lanceolate-ob- 

 long, 2-3*2 i"- long, narrowed at the base, penninerved, glabrous, 

 light green beneath, not reticulate. W. China. J.H.S. 29:91. — 

 A. fiabelldtum, Rehd. Allied to A. Oliverianum. Tree, to 30 ft.: 

 Ivs. 7-lobed, deeply cordate, 3-5 in. across, light green beneath 

 and villous along the veins. Cent. China. S.T.S. 1:81.— A. 

 Franchetii, Pax. Tree, to 15 ft.: Ivs. 3-lobed; slightly pubes- 

 cent beneath or glabrous at maturity and light green, 3-4 in. long; 

 lobes broadly ovate, acute, remotely toothed: fis. in short pubes- 

 cent racemes from lateral leafless buds, with the Ivs.: fr. with 

 the wings spreading at right angles or less, nutlets thick, hairy: 

 winter-buds with numerous imbricate scales. Cent. China. S.T.S. 

 1:87. Belongs to the section Lithocarpa. — .4. fulvescens. Rehd. 

 Allied to A. pictum. Tree, to 60 ft.: Ivs. usually 3-lobed, 2-4 

 in. across, beneath covered with a yellowish or fulvous pubes- 

 cence. W. China. Hardy at the Arnold Arboretum. — A. ketero- 

 pbyllum, Willd.=A. orientale. — .4. Hodkeri, Miq. Allied to A. 

 Davidii. Tree, 60 ft.: Ivs. cordate-oblong, serrate, 4-6 in. long, 

 quite glabrous beneath. Himalayas. — .4. hyhridum, Spach. Prob- 

 ably A. itaium X pseudoplatanus. — -4. hybridum, Baudr.^A. 

 Boscii. — .4. Lrrigdtum, Wall. Allied to A. oblongum. Small tree: 

 Ivs. oblong, nearly entire, attenuate at the base, penninerved, 

 green beneath. Himalayas, China. — A. laivigdtum, Hort. =A. 

 acuminatum. — A. Lobelii, Ten. Allied to A. cappadocicum. 

 Branches glaucous: Ivs. rounded at the base; lobes mostly undu- 

 lated, abruptly pointed. Italy. — .4. Maximowiczii, Pax (A. urophyl- 

 lum, Maxim.). Allied to A. Tschonoskii. Small tree: Ivs. 3-o-lobed, 

 doubly serrate, the middle lobe much elongated, long-acuminate, 

 glaucescent beneath, glabrous, 2-3 in. long: fr. slender-stalked; 

 wings spreading at an obtuse angle. Cent. China. S.T.S. 1:84. — 

 A. Mdyrii, Schwerin. Allied to A. cappadocicum and A. amptum. 

 Tree with smooth bark: Ivs. usually 3-lobed, glabrous, 3 in. across; 

 lobes very broad, long-acuminate; wings of fr. upright, incurved. 

 Japan. — A. mexicd?ium. Pax (Negundo mexicanum, DC. A. ser- 

 ratum. Pax). Allied to A. Negundo. Lfts. 3, pubescent beneath, 

 densely serrate: fr. glabrous; wings spreading at an acute angle. 

 Mex. — A.micrdnthum, Sieb. & Zucc. Allied to A. Tschonoskii. Shrub 

 or small tree: Ivs. 5-7-lobed; lobes incised and doubly serrate, gla- 

 brous; fls. and fr. small. S.Z. 1:141. S.I.F.2:44. — A. neapolitdnum, 

 Ten.=A. obtusatum. — .4. neglectum, Lange (A. zceschense. Pax). 

 Probably A. campestre X Lobelii. Var. Annae, Schwerin. Young Ivs. 

 deep red, later olive-green. M.D. 190S:1. — .4. obtusatum, W'aldst. & 

 Kit. (A. neapolitanum. Ten.). Allied to A. Opalus. Small tree or 

 shrub: Ivs. o-lobed, pubescent beneath, about 4 in. across; lobes 

 broad, often rounded, obtusely denticulate; wings of fr. spreading 

 at a right angle or less. S. Eu.. N. Afr. H.W. 3, p. 47. Tender at 

 the Arnold Arboretum. — .4. orientale, Linn. (A. creticum, Linn. A. 

 sempen-irens, Linn. A. heterophyllum, Wjlld.). Allied to A. mon- 

 spessulanum. Shrub, 4 ft.: Ivs. nearly evergreen, short-stalked, 

 orbicular or oval, entire or 3-lobed, V2-I H in. long, glabrous. 

 Orient. — .4. parriftdrum. Franch. &, Sav. (A. crassipes. Hesse, not 

 Pax. .\. brevilobum, He.ssel. Allied to A. caudatum. Tree: Ivs. 

 3-5-lol)ed, pubescent beneath, 4-6 in. across; lobes broadly ovate, 

 acute, doubly serrate: wings of fr. spreading at an obtuse angle. 

 Japan. S.I.F. 2:42. Not quite hardy at the Arnold Arboretum. — ■ 

 A. pectindlum. Wall. Allied to A. pennsylvanicum. Tree: Ivs. 

 3-lobed, setosely serrulate, 2J.2-3H in. across, the middle lobe 

 elongated, acuminate. Himalayas. G.C. II. 15:365. — A. Perdnai, 

 Schwerin. Supposed hybrid of A. Opalus X monspessulanum. 

 Originated at Vallombrosa near Florence. — ,4. robustum. Pax. Allied 

 to A. palmatum. Small tree: Ivs. 7-9-lobed, cordate, 3-4 in. across, 

 glabrous beneath except the tufts of hairs in the axils of the veins; 

 lobes ovate, acuminate, sharply serrate: wings of fr. nearly hori- 

 zontally spreading. Cent. China. — A. rotundilobum, Schwerin 

 (A. b4rbatum. Booth, not Michx.). Possibly A. obtusatum X 

 monspessulanum. — ,4. Schwerinii, Pax. Aflinity doubtful. Lvs. 

 coriaceous, ovate-oblong, cordate, undivided or 3-lobed, glau- 

 cous beneath, soon glabrous. .5-7 in. long: fls. and fr. unknown. 

 Probably from the Himalayas. Var. marmordtum, Schwerin, has 

 the Ivs. variegated with light green. Var. monophyllum, Schwerin, 

 has the Ivs. 2-3 H in. long. — A. semper vir en a. Linn.^A. orientale. — 

 A. 5errd/um. Pax=A. mexicanum. — .4. sikkimense, Miq. Allied 

 to A. Davidii. Tree: Ivs. cordate-ovate, coriaceous, long-acu- 

 minate, quite glabrous, entire or serrulate, 4-7 in. long: wings of fr. 

 spreading at a right angle. Himalayas. — A. sinense. Pax. Allied 



to A. Oliverianum. Tree: Ivs. 5-Iobed, cordate or sometimes 

 truncate, glaucescent beneath, glabrous, 3-6 in. long; lobes ovate, 

 acuminate, sparingly appressed-serrate: panicle elongated: wings 

 of fr. spreading horizontally. Cent. China. S.T.S. 1:78. J.H.S. 

 29:92. — .4. sterculiaceum. Wall. (A. viilosum. Wall.) Allied to A. 

 Franchetii. Tall tree: ivs. 3-5-lobed, cordate, 6-8 in. across, 

 tomentose below, coarsely serrate: racemes from lateral leafless 

 buds: fr. in long pendulous racemes, often branched at the base; 

 wings of fr. nearly upright. Himalayas. — A. sutchuencnse, Franch. 

 (A. sutchuense. Pax). Allied to A. raandshuricum. Small tree: 

 lfts. 3, oblong-lanceolate, unequally serrate, glaucous beneath, 

 154-3 in. long: corymb many-fld., rather dense. Cent. China. 

 S.T.S. 2:112. — Probably not in cult.; the plant figured by 

 Veitch under this name is A. Henryi. — A. tegmentdsum, Maxim. 

 Allied to A. pennsylvanicum. Lvs. 3-4 in. long, glabrous beneath; 

 lobes short; fls. small. Manchuria. G.C. II. 15:75. — A. trifidum.. 

 Hook. & Arn. Allied to A. tataricum. Small tree: lvs. coriaceous, 

 cuneate-obovate, 3-lobed, glaucous beneath, glabrous, 2-3 in. 

 long; lobes entire. China, Japan. S.Z. 2: 143, — A. urophyllum, 

 Maxim. ^^ A. Maximowiczii. — A. Veitchii, Schwerin. Possibly 

 A. cratiegifolium X rufinerve. — A. villdsum,Wa\l.=A. sterculiaceum. 

 — .4. Wilsojiii, Rehd. Allied to A. Oliverianum. Tree: lvs. 3-lobed, 

 light green beneath, glabrous. 3^2-4 in. across; lobes ovate to 

 oblong-ovate, acuminate, entire, or sparingly serrate; panicle 

 elongated: wings of the fr. spreading at a right angle. Cent. China. 

 S.T.S. 1:79. — A. zceschense, Pax=A. neglectum. 



Alfred Rehder. 



ACERANTHUS {Acer, maple, and anthos, flower, in 

 allusion to the maple-like flowers). Berberiddcese. 

 Barrenwort. a genus of 4-6 species of slender, 

 hardy, herbaceous perennials from Temp. Asia and 

 Algeria, related to the native twin-leaf, Diphylleia. Fls, 

 variously colored, racemose; sepals 7-8, petaloid, the 



102. Achillea Millefolium var. rubmm. (XH) 



outer ones smaller than the inner; petals flat: lvs. 

 BoUtary. — Not commonly cult, and the following seen 

 only in botanic gardens. 



A. diphyllus, Morr. & Decne. (Epimedium diphyllum, Lodd.). 

 Plant rhizomatous: lfts. obliquely cordate, green above, glaucous 

 beneath: fls. small, bluish white. Japan. B.M. 3448. L.B.C. 



N. Taylor. 



19:1858. 



ACHANIA : Malvaviscus^ 



ACHILLEA (its virtues said to have been discovered 

 by Achilles). Comp6sit3P. Includes Plarmica. About 

 100 species, some of which are hardy herbaceous bor- 

 der and alpine perennials of easy culture. 



Leaves simple or compound, often ternate: fl.-heads 

 emaU, corymbose or racemose; receptacle nearly flat 



