LEUCyENA 



Moxipo. OiKitonialn, Prni. ami Pacifle islands, but L. 

 Qianfii i-i fiiiiiicl ill tin- tio]iii.-s of both worlds. It grows 

 wild ill tln> W . -I IiMli.- an. I in western Texas. Thetrees 

 and ^hnlll> .'1 iln- -. im- have the habit of Acacia, but 

 btlon^' tn tlir .Miiiii'^a tribe, which is characterized by 

 stamens 10 or less. C4eneric characters are: calyx 5-den- 

 tate : stamens 10, not glandular: pod broadly linear, 

 stalked, flat-compressed, chartaceous, 2-valved : seeds 

 compressed. Aeacia trichodes is i. trichodes, Benth., 

 lint it is not in the trade. 



glaiJca, Benth. {AcAeia fronddsn, Willd. A. glaiica, 

 Hloenihl. Spineless: branches and petioles powdery: 

 piuna> -l-S-paired; Ift.s. 10-20-paired, oblong linear, glau- 

 cous below: pod 5-C in. long. 



LEUCHTENBfiBGIA (after Prince Leuchtenberg). 

 Cactdcea. Agave Cactus. Stems in age forming a trunk 

 2 in. or more in diam. . by the shedding of the lower tuber- 

 cles: tubercles triangular-acuminate, spreading, 2-4 in. 



LEUCOPHYLLUM 



907 





-' t^ 



1269. Leuchtenbergia principis (X %) 

 (Adapted from Botanical Magizine ) 



long, H-% in. wide, with twisted papery spines : fls. fun- 

 nelform, widely expanded, borne near the apex of young 

 tubercles: fr. gray, ovate-elliptical, 1 in. long, covered 

 with scales and crowned by the persistent flower: seeds 

 dark brown, iniiiiii.lv tnberculate. Only 1 species, 

 closely ri- la I. .1 i.. i;.liiip..a.-tus,butof remarkably differ- 

 ent form. I'ln |.l:iiit 1- rea.lily grown in the manner of 

 Echinocactns ami .Mainillaria.' 



principis, Hook. & Fisch. Pig. 1269. Radial spines 

 6-8, the central one usually solitarv, longer, sometimes 

 8 in. long: fls. yellow. B.M. 4393. A.G. 11:464. 



Katharine Brandegee. 



lEtJCOCBtNDM (Greek, icftf^e ;(7i/). LUUcem. Sand 

 Lily of Colorado. A hardy bulbous plant growing a few 

 inches high, with narrow foliage and clusters of pure 

 white, fragrant fls. borne just above the ground in early 

 spring. The fls. are funnel-shape.l. liavini: a slemler 

 tube 2-4 in. long, the greater portiiin ..1' «lii .h i^ li. l.iw 

 the surface of the soil, and C lobes, .'aih ' ,-1' _ in. |..iig. 

 They are borne in clusters of 4-many lis . .aii.l maintain a 



for; 



veral weeks. Thev slio 



able 



for edging w^alks and bulb beds. They have a deep-seated 

 rhizome and fleshy roots. The bulbs are procurable 

 from Colorado and California, either as collected or nur- 

 sery-grown stock. The genus has only one species. It 

 belongs to an anomalous group, characterized by almost 

 total la.k i.f .stem and fls. solitary or clustered among 

 the radi.al h^. Ir. -in the Other members of this group 

 it is liisiiii-iii-ln.l l.y the Ivs. not 2-ranked, and an in- 

 dettnit... iiiiiiili.r ..t ..vules in each locule. Perianth seg- 

 ments narrowly lanceolate, persistent: stamens 6: style 

 persistent, slightly 3-lobed. 



montinum, Nutt. Sand Lily of Colorado. Lvs. 8-12or 

 more, flat, rather thick, 4-8 in. long, 1-3 lines wide: 

 pedicels y.-VA in. long. j. h_ Cowen. 



LETTCOJUM (name explained below). Also written 

 Leitcoium. Amaryllidicew. Snowflake. The Snow- 

 flakes are hardy bulbous plants growing a foot or less 

 high and bearing dainty, nodding, 6-parted fls., which 

 are white, tipped with green, yellow, or a tinge of red. 

 They are less popular than Snowdrops (Galanthus), to 

 which they are closely related, and have larger fls., with 

 all the segments of equal size. There are 8 species, na- 

 tives of Europe and the Mediterranean region, 4 of which 

 arecult. Perianth-tube none; segments ovate or oblong. 

 Baker, Handbook of the Amaryllidea?. 1888. TIu- name 



LeUCOJUm was ;;iv.'ll I.V I.illli;rMs. liut Ii.- did n.il . \]:I:iin 



theapplicatioii. 'I'll.- .'1.1 1 ir. . k ii.ni.'. /.. ..■. . .i..:i 



by Theophrasiu, i,, a iilani im.\'. ■ii|i]....i .i ••. : . • i ... 



fer, like some st..ids ..r wallil.m.r. /,■ .< - i.-m 



leitkos, shining, white, and iuii. violet, fcuuiulukc- ap- 

 pear about the same time as white violets, and some- 

 times have a delicate odor, resembling that of the violet, 

 but the form of the fls. is very different. For culture, 

 see Bulbs. 



A. Hloominf/ iu March. 



v6rnum, Linn. Spring Snowflake. Bnib globose, 

 54-1 in. in diameter: lvs. strap-shaped, tinally G-9 in. 

 long, 4-6 lines wide: scape J-j-l ft. long, usually 1-fld.: 

 perianth segments white, tipped green : seeds with a 

 pale, membranous coat and conspicuous strophiole. 

 Central Ea., France to Bosnia and Tyrol. B.M. 46. G.C. 

 Il.ll:399;21:341;23:341. P.C4.5:47. Gn. 25, p. 335, and 

 29, p. 607. V. 8:69. Var. Carp4thicum, Herb., has 

 perianth segments tipped yellow. B. M. 1993. J. H. 

 III. 32: 169. G.M. 39: 105. A choice form, usually bear- 

 ing 2-4 fls. 



AA. Blooming in April and May. 



sestivum, Linn. Susimer Snowflake. Bulb ovoid, 

 l-\}4 in. in diameter: lvs. strap-shaped, 1-lK ft. long: 

 scape 1 ft. long, 4-8-fld.: perianth segments white, 

 tipped green : seeds with a black, hard-shelled coat and 

 no strophiole. Blooms end of April and beginning of 

 Mav. Central and 8. Eu. Mn.9:45. P.6.1:7. V. 3:342 

 • ami 8:70. 



pulchMlum, Salisb.. differs from L. cestivum by its 

 smaller fls. and capsule, narrower lvs. and fls. afortnight 

 earlier. Sardinia and Balearic Isles. 



AAA. Blonming in autumn. 



autumnile, Linn. (.\ri.^ ,,;.//,„.„ 1?;,-. >^:ii;-l..). Au- 

 tumn Snowflake. Bull, ul.'l...-' ' : i ■! i'li't.T: lvs. 

 thread-like, usually pr...lii.-..l .ii q.e very 



slender, 3-9 in. lone, l-:;il.l. : |..i,..i n . _,i,. nis white, 

 tinged with red: stamens hall a,, lun.- a.s .sLgments. 

 Portugal and Morocco to Ionian Islands. B.M. 960.— 

 Not satisfactory everywhere. 



rdsenm, Martin. Bulb globose, K-X in. in diam.: 

 peduncle shorter and usually 1-fld. : perianth segments 

 Hin. long, rose-red, oblanceolate : stamens J^ in. long. 

 Corsica. — Usually diflicult to grow, and little known 

 horticulturally. j. N. Gerard and W. M. 



LEUCOPHtLLUM (Greek, wliife leaf}. ScrophulariA- 

 ceoe. This includes a rare shrub from southern Texas, 

 the leaves of which are covered beneath with silvery 

 white wool. It has showy violet-purple, bell-shaped fls. 

 an inch across, borne in spring. In cultivation it flowered 

 for the first time in 1890, at Augusta, Ga., with P. J. 

 Berckmans. It is now cult, in S. Fla., and deserves cul- 

 tivation everywhere in the South. According to C. S. 

 Sargent, "There is no shrub of the desert portions of 



