M 



MAACKIA (after Richard Maack, Russian naturalist 

 who explored northeastern Asia; 1825-1886). Legumin- 

 dsae. Trees grown out-of-doors for their handsome foli- 

 age and the panicles of white flowers. 



Deciduous: winter-buds free, scaly: Ivs. alternate, 

 odd-pinnate, with entire, opposite or nearly opposite 

 short-stalked Ifts.: fls. white, papilionaceous, in dense 

 upright racemes, usually several in terminal panicles; 

 calyx campanulate, 5-toothed; stamens 10, more or less 

 connate: pod linear-oblong, compressed, with 1-5 seeds. 

 Two or three species in E. Asia; usually united with 

 Cladrastis, but easily 

 distinguished even 

 without fls. by the 

 free scaly winter-buds 

 and the opposite Ifts. ; 

 in Cladrastis the win- 

 ter-buds are naked 

 and inclosed in the 

 base of the petiole 

 and the Ifts. are alter- 

 nate. 



The maackias are 

 small or medium- 

 sized trees or rarely 

 shrubs with rather 

 large pinnate foliage 

 and upright dense 

 panicles of small 

 white flowers appear- 

 ing in summer. They 

 are hardy North and 

 not particular as to 

 the soil, but prefer a 

 warm and sunny 

 position to bloom 

 well. Propagation is 

 by seeds sown in 

 spring or by root- 

 cuttings like cladras- 

 tis. 



amurensis, Rupr. 

 (Cladrdstis amurbn- 

 sis, Koch). Tree, to 

 40 feet.: Ifts. 7-11, 

 elliptic- or oblong- 

 ovate, rounded at the 

 base, glabrous, 2-3 in. long: racemes erect, dense-fld., 

 usually panicled, 48 in. long; fls. whitish, about J^in. 

 long : pod 1J/6-2 in. long. July, Aug. Manchuria. B.M. 

 6551. Gn. 24, p. 265; 33, p. 444; 44, p. 60. F.S.R. 3, p. 

 23. G. 6:379. H.F.II. 13:298. Var. Buergeri, Schneid. 

 (Cladrdstis amurensis var. floribunda, Shirasawa), from 

 Japan, has the Ivs. pubescent beneath. S.I.F. 1:50. 



M. Tashirdi, Makino (Cladrastis Tashiroi, Yatabe). Shrub: 

 Ifts. 9-15, nearly glabrous, V^-^Vi in. long: fls. smaller; standard 

 not emarginate. Japan. Tokyo Bot. Mag. 6:10. 



ALFRED REHDER. 



MABA (native name). Ebenacese. Some 60-70 

 species of trees and shrubs in the warmer regions of the 

 world, mostly with hard ebony-like wood. Closely 

 allied to Diospyros, the floral parts mostly in 3's instead 

 of 4's or 5's, stamens usually 9 but varying from 3 to 

 many, ovary 3- or 6-celled: Ivs. usually smaller than in 

 Diospyros. Lvs. alternate, simple and entire: fls. 

 axillary, solitary or in short cymes, usually direcious; 



2241. Macadamia terni folia; a, nut showing dehiscence of husk; b, cross-section; 

 c, longitudinal section. (Spray X 1 A, separate leaf X %, nuts X 1) 



corolla bell-shaped or tubular; styles 3, or 1 and 3- 

 parted: fr. a berry, ovate or globose, 1-6-seeded. Two 

 species have been intro. S. as ornamental subjects. 



natalensis, Harv. Much-branched evergreen shrub, 

 with flexuous branches: Ivs. wide, ovate, oblong or 

 elliptical, obtuse, dark green above, paler beneath, 

 glabrous, netted-veined beneath: female fls. solitary; 

 calyx cup-shaped, glabrous, entire; abortive stamens 

 6-7; ovary glabrous: berries in large bunches, black. 

 Natal; offered in S. Fla. 



sandwicensis, A. DC. Attractive tree, 20^40 ft.: 



Ivs. thick and 

 leathery, dull 

 green, elliptic 

 or ovate - ob- 

 long, distich- 

 ous: fls. single 

 or the males 

 rarely clus- 

 tered, small, 

 the corolla 3- 

 toothed and 

 densely hairy 

 on upper half; 

 male fls. with 

 12-18 free stamens: 

 fr. dry or somewhat 

 fleshy, usually 1- 

 seeded at maturity, 

 bright reddish yel- 

 low. Hawaii (where 

 it is known as ' 'lama' ' ) 

 and Fiji; offered in 

 S.Calif. L. H. B. 



MABEA (from 

 jririri-mabe, the name 

 in Guiana). Euphor- 

 biacese. Climbing or 

 creeping shrubs, some 

 with economic uses, 

 if not in cult. Juice 

 milky: Ivs. alternate, 

 simple, pinnately 

 veined, short - peti- 

 oled, pubescent: fls. 

 monoecious, apetalous; staminate calyx 3-5-lobed, 

 lobes imbricate; stamens 10-70; styles connate into a 

 long, slender column, free above; ovary 3-celled, 1 ovule 

 in each cell; seeds carunculate. Thirty species in Trop. 

 S. Amer. Related to Sapium and Stillingia. M. fistu- 

 Ibsa, Mart., is used in Brazil for pipe-stems and in medi- 

 cine. This species and M. occidentalis, Benth. (M. 

 Piriri, Benth.), yield some rubber, j B g, NORTON. 



MACADAMIA (after John Macadam, M.D., secre- 

 tary Philosophical Institute, Victoria, Australia). 

 Proieacex. A small group of Australian trees or tall 

 shrubs, of which M . ternifolia is cultivated for its edible 

 fruit, and is the best known. 



Leaves yerticillate, entire or serrate: fls. hermaph- 

 rodite, pedicellate in pairs or scattered, in terminal or 

 axillary racemes or panicles; perianth regular or nearly 

 so; stamens inserted a little below the blades, filaments 

 short; ovary sessile, with a long straight style, ovoid or 



(1938) 



