244 



ALBIZZIA 



ALECTRYON 



procera, Benth. (Acacia procera, Willd.). Tail tree: 

 Ivs. with nearly glabrous rachis; pinnae 6-10, each with 

 12-16 Ifts., oblique-oblong, 1-1 % in. long, glabrous: 

 heads few-fld., greenish white. Trop. Asia, Austral. 



cc. Lfts. falcate, with the midrib close to the 

 upper edge, acute. 



Julibrissin, Durazz. (Acacia Julibnssin, Willd. A. 

 Nemu, WiUd.) . Tree, 30-40 ft. : rachis of the Ivs. with a 

 small gland at the base; pinnse 8-24. with numerous 

 Ifts., falcate-oblong, Vim., long: heads pink, slender- 

 peduncled, crowded on the upper end of the branches. 

 Wanner Temp. Asia from Persia to Japan. Summer. 

 S.F. 1:51. yar. rdsea, Mouillef. (A. rosea, Carr.). 

 Fls. bright pink, dwarf er and hardier than the type. 

 R.H. 1870:490, 1912, pp. 184, 185. F.S. 21: 2199 .This 

 variety is sometimes grown under the name A. Nemu. 



Var. mollis, Benth. (A. mdllis, Boiss. Acacia mdllis, 

 Wall.). Lfts. broader, densely pubescent. Himalayas 

 and Abyssinia. 



154. Albizzia Lebbek. 

 (XX) 



stipulata, Boiss. (Acacia stipulata, DC.). Tall tree: 

 young branches with large, persistent stipules: rachis 

 of the Ivs. with many glands, pubescent; pinnae 12-40, 

 with numerous Ifts., oblong-linear, }^-}^in. long, pu- 

 bescent beneath: heads in axillary simple or terminal 

 compound racemes. Trop. Asia. 



BB. Stamens connate into a long, narrow tube. 

 fastigiata, Oliver (Zygia fastigiata, E. Mey.). Tree: 

 branches and petioles rusty-pubescent; pinnae 8-14, 

 each with 16-30 Ifts., trapezoid-oblong, J^-J^in. long, 

 pubescent beneath: heads in terminal corymbs on the 

 end of the branches. Trop. Afr. 



A. molucc&na, Miq. Tree: rachis of the Ivs. with many glands; 

 piniue 14, each with 1240 Ifts., obliquely elliptic-oblong, glaucous 

 and pubescent beneath. Moluccas. Incompletely known. 



ALFRED REHDER. 



ALBUCA (whitish; the color of the first-described 

 species). Liliaceas. Tender bulbs from the Cape -of 

 Good Hope allied to Ornithogalum, and treated in the 

 same way. 



Bulb tunicated: Ivs. all radical, flat or terete: fls. 

 large, yellow, white or green, in single racemes: perianth 

 of 3 outer oblong more or less spreading parts and 3 

 inner shorter connivent segms. ; stamens 6, the filaments 

 often winged; stigma 3-lobed: fr. a 3-valved caps. 

 S. and Trop. Afr. and Arabia. 



There are a good number of species of Albuca (about 

 30), but few are much known to cultivation, and none 

 of them is apparently planted to any extent in this 

 country. Albucas are late spring and summer bloomers, 

 producing attractive white or yellow flowers. In mild 

 climates, they may be carried over winter in a frame 

 or with a good protection of litter. Propagation is by 



offsets or by seeds. Some of the species are hothouse 

 plants. Allied to Urginea, to which the A. major of 

 catalogues probably belongs. Numbers of hybrids have 

 been produced. 



auiea, Jacq. Two ft.: bracts yellow: fls. 10-30, pale 

 yellow, upright: Ivs. very narrow, flat. June. 



Nelsonii, N. E. Br. Three to 5 ft.: fls. 1^ in. long, 

 in a large cluster or spike, almond-scented, pure white 

 with a red-brown stripe down the middle of each segm. 

 (but pure white under glass) : Ivs. long, grooved or con- 

 cave at base, flat above, pointed. July, Aug. Probably 

 the best species yet intro. The bulbs are lifted in 

 autumn ; or they may be potted up for greenhouse use. 

 It is an excellent plant when well grown. B.M. 6649. 



L. H. B. 



ALCHEMILLA (from an Arabic name). Rosacex. 

 Hardy herbaceous perennials, suitable for rock-gardens 

 and front rows of borders. 



Low (6-8 in.): Ivs. palmately lobed or compound: 

 fls. small, greenish or yellowish, in clusters; petals 0; 

 stamens 1-4; pistils 1-4, becoming achenes included in 

 the persisting calyx. Species 30 or more in Cent, and 

 S. Amer., Afr., India and elsewhere, largely in mountains. 



Plants of easiest culture. Propagation is effected by 

 division or by seeds. A. arvensis and A. pratensis of 

 Europe are naturalized in North America. The A, 

 major of catalogues is probably a form of one of the 

 species. 



alpina, Bieb. Lvs. digitate, 5-7-cut; Ifts. usually 

 7, lanceolate-cuneate, obtuse, serrate at apex, silky 

 hairy beneath, shiny. Eu. 



sericea, Willd. Lvs. larger than in A. alpina, 5-7- 

 nerved, digitate; Ifts. 7, lanceolate, acute, deeply 

 serrate from the middle to apex, downy beneath. 

 Caucasus. 



vulgaris, Linn. (A. montana, Schmidt). LADY'S MAN- 

 TLE. Lvs. 7-9-nerved, 7-9-cut; reniform, plicate- 

 concave. North temperate zone. L. jj 3^ 



ALCHORNEA (in memory of Stanesby Alchorne). 

 Euphorbiacex. DOVEWOOD. Tropical shrubs or trees 

 with alternate, entire or dentate Ivs.: fls. usually 

 dioscious, in elongated slender catkin-like infl.; stami- 

 nate calyx 4-lobed; stamens 8. 



One species, A. ilicifolia, Muell. Arg., is rarely grown 

 in greenhouses, and is listed by U. S. Dept. of Agric. 

 as intro. from Austral. It is a tall, handsome shrub 

 with thick, holly-like Ivs. The wood is useful. 



J. B. S. NORTON. 



ALDER: Alnus. 



ALECTORURUS (Greek, apparently cock's-tail). 

 Liliacese. An anthericum-like plant, summer-blooming 

 and suitable for outdoor culture; hardy in England. 

 Blooms well in pots. One species, A. yedoensis, Makino, 

 of Japan (known also as Anthericum yedoense, Maxim., 

 and Bulbinella yedoensis, Matsum.), is now intro. to 

 gardens. It is a perennial glabrous herb with a short 

 and thick rootstock: Ivs. 6-11, 2-rankrd, 20 in. or less 

 long: fls. many, small, pale rose, racemose along panicled 

 branches on a scape or st. surpassing the Ivs. ; perianth 

 bell-shaped, segms. 6; stamens 6, in some fls. exserted 

 and in others only equaling the segms. ; ovary- 3-lobed. 

 In Japan it is known as Keibi-ran. B.M. 8336. G.C. 

 III. 48:352. L. H. B. 



ALECTRYON (Greek name for the chanticleer). 

 Sapindacese. TITOKI. Tall trees, one of which is grown 

 in California. 



Leaves alternate, pinnate, stipulate, the Ifts. entire or 

 toothed: fls. mostly unisexual, in axillary or terminal 

 panicles, the petals wanting, containing a small lobed 

 disk; stamens 10 or less: fr. a hard woody caps., the 

 seeds arillate, with spiral cotyledons. Some 16 species 

 in Malaya and the Pacific Isls. 



