LEPTOSPERMUM 



LEPTOTES 



1843 



Propagation is by seeds sown in spring and treated like 

 those of erica or rhododendron, but usually by cuttings 

 of young wood in May under glass, or of nearly mature 

 wood in autumn and kept in winter in temperate house. 



A. Ovary usually 10-celled. 



laevigatum, F. Muell. Tall shrub, attaining 20-30 ft., 

 glabrous and somewhat glaucous: Ivs. varying from 

 obovate-oblong to oblong-cuneate or narrow-oblong, 

 obtuse, J^-l in. long, 3-nerved : fls. white ; calyx glabrous : 

 caps, slightly protruding above calyx-tube. Austral. B.M. 

 1304 (as Fabricia Isevigata). G.C..II. 25:816; III. 9:45. 



AA. Ovary usually 5-celled. 



B. Calyx-tube glabrous. 

 c. Lvs. flat or with recurved margins, obtuse or scarcely 



pointed (except in the large variety). 

 flavescens, Smith. Tall shrub: Ivs. usually narrow- 

 oblong to linear-lanceolate or broadly oblong or even 

 obovate, J^Min. long: fls. about Hin- across, white. 

 Austral. B.M. 2695. Var. obovatum, F. Muell. Lvs. 

 broadly obovate to obovate-oblong, under J^in. long. 

 Cult, in Eu. under glass. Var. grandiflSrum, Benth. & 

 Muell. Lvs. rather larger: fls. larger than in any other 

 variety. L.B.C. 6:514. 



cc. Lvs. flat or concave, sharp-pointed, narrow or small. 



scoparium, Forst. Attaining 10-12 ft. : Ivs. ovate to 

 linear-lanceolate or linear, mostly under K m - long. 

 Otherwise, almost exactly as in L. flavescens. Var. juni- 

 perinum, Nichols. (L. juniperinum, Smith) . A narrow- 

 Ivd. form with pubescent pendulous branchlets. Var. 

 bullatum, Rehd. (L. bullatum, Hort.). Lvs. larger, 

 narrow: fls. larger, about %in. broad. G.C. III. 51 : 100. 

 G. 30:415. R.H. 1903, p. 375. R.B. 30, p. 44. J.H. 

 III. 30:435. Var. Nichollii, Turrill. Fls. carmine: Ivs. 

 purple, but green in plants grown under glass. Gn. 

 77:612. B.M. 8419. R.H. 1912:520. Var. grandifld- 

 rum, Hook. Fls. large, pink or nearly white. B.M. 

 3419. Gn. 51:390. Var. Chapmannii, Dorrien Smith. 

 Lvs. brownish: fls. bright rose. New Zeal. Var. B6s- 

 cawenii, Bois. Fls. 1 in. across, cherry-red in bud, 

 white with reddish center when expanded. New Zeal. 

 R.H. 1912:520. G.C. III. 51, suppl. One of the most 

 desirable forms. It is said to be of relatively easy cult., 

 with compact habit, the branches spreading in all 

 directions. Excellent plants for the amateur, but very 

 Blow-growing. L. scoparium is the manuka or tea-tree 

 of New Zeal. 



BB. Calyx-tube more or less densely clothed with 

 silky or woolly hairs. 



pubescens, Lam. (L. tanigerum, Smith). Tall shrub 

 or small tree: branchlets villous: Ivs. varying from 

 obovate-oblong to elliptic or narrow-oblong, normally 

 J^in. long, silky-villous while young, rarely glabrous: 

 fls. 1 A~% in. across, white. Austral. L.B.C. 8:701; 

 12:1192. B.M. 1810. I.H. 32:570. G.C. II. 12:427. Gn. 

 19 : 42, and 27, p. 145. G. 29 : 642. Extremely variable. 

 Long cult, abroad, but not advertised in Amer. 



L. flexudsum, Spreng. (Agonis flexuosa, Schauer). Tall shrub or 

 tree, to 40 ft.: branchlets at first pubescent, finally glabrous: Ivs. 

 lanceolate or linear-lanceolate, 3-nerved, J^-K in. long: fls. white, 

 over ,V^in. across, in axillary heads; calyx pubescent, stamens 20. 

 Austral. This species is now generally referred to Agonis which 

 differs from Leptospermum chiefly in the capitate infl. and in the 

 cells of the ovary having only 2-6 ovules ascending from a basal 



ALFRED REHDER.! 



LEPTOSYNE (Greek, slenderness). Compdsitae. 

 Yellow-flowered composites, with much-divided foliage 

 like cosmos. 



Smooth and glabrous herbs and subshrubs: Ivs. 

 alternate or opposite, usually rather fleshy, and ter- 

 nately or pinnately divided or dissected. They are the 

 representatives of Coreopsis on the western side of the 

 continent, but have mostly pistillate rays and always 

 a ring on the tube of the disk-fls. Seven species, all 

 from Calif, except L. arizonica. The genus is united 



with Coreopsis by some authors, including Hoffmann 

 in Engler & Prantl. 



In the North these plants are mostly treated as 

 half-hardy annuals. None of them has anything like 

 the popularity of either cosmos or Coreopsis tinctoria. 

 The commonest species is L. maritima, but L. Still- 

 manii promises to outrank it, although not well 

 known in the trade. L. Stillmanii is said to bear 

 flowers \]/2 inches across, for 5 or 6 weeks. Its seed 

 germinates quickly and can be sown outdoors. Sandy 

 soil and a sunny position are advised. It is said to 

 bloom in four to five weeks after sowing. L. maritima 

 should be started indoors, transplanted in May, and 

 can be brought into flower by July. Two distinct plants 

 are passing in the trade as L. maritima, one of which is 

 L. calliopsidea, and is considered an inferior plant by 

 some. The seeds of the two plants are easily dis- 

 tinguished. 



A. Rays obovate. 

 B. Seeds having long, soft, villous hairs. 



calliopsidea, Gray (Agarista calliopsidea, DC. Co- 

 redpsis calliopsidea, Boland.). This is the plant figured 

 in R.H. 1873:330, erroneously as L. maritima. Annual, 

 1-2 ft. high, rather stout and leafy: fls. 3 in. across, 

 long-stalked; rays fewer, shorter and broader than in 

 L. maritima, \% in- long, %-l in. wide. 



BB. Seeds having short, rigid bristles. 

 Douglasii, DC. (L. californica, Nutt. Coreopsis 

 Douglasii, Hall). Annual, 9-12 in. high: Ivs. 1-3 times 

 parted: fls. on solitary, long-stalked heads; ring of the 

 disk-fls. distinctly bearded. June, July. 



BBB. Seeds not hairy. 



Stillmanii, Gray. Stouter than L. Douglasii and more 

 leafy below, surmounted by a single long-stalked head : 

 ring of disk-fls. beardless. Gn. 52, p. 461. G.C. III. 

 22:333. R.B. 23, p. 275. Gt. 46, p. 612. S.H. 2:44. 

 G.L. 23:293. Intro. 1898, by Benary. Annual with 

 linear (not filiform) If. -lobes. 



AA. Rays oblong: perennials. 

 B. Sts. low, from a thick base. 



maritima, Gray (Coredpsis maritima, Hook, f .) . Per- 

 ennial: Ivs. 2-pinnate: fls. 3^ in- across, borne at the 

 ends of branches on peduncles 9-12 in. long; rays 16- 

 20, \Yi in. long; disk 1 in. across: seeds not hairy. B.M. 

 6241. Gn. 49:272. Not R.H. 1873:330, which is 

 really L. calliopsidea. Makes a good bog-plant. 



BB. Sts. 2-8 ft. high, 1-5 in. thick, somewhat woody, 

 often decumbent. 



gigantea, Kellogg (Coreopsis gigantea, Hall) . Differs 

 in being leafy at the top only, the others being leafy at 

 the base: Ivs. 2-3-pinnate: fls. smaller than in L. mari- 

 tima, borne on short corymbose peduncles; disk J^in. 

 across: seeds not hairy. Cult, in S. Calif. Gt. 44, p. 

 592. G.C. III. 28:319. The fls. are said to be sweet- 

 scented. WILHELM MILLER. 



N. TAYLOR.f 



LEPTOT/feNIA (narrow vittse or oil-tubes). Umbel- 

 liferse. Several N. American tall perennial herbs, 

 allied to Ferula and Angelica: glabrous: roots thick and 

 fusiform: Ivs. pinnately compound: fls. yellow or 

 purple, in compound umbels, the involucre and involu- 

 cels none or of few -bracts: fr. oblong or nearly orbicu- 

 lar, much compressed. Two species were once listed, 

 but probably none is in cult. Manuals of the plants 

 of the Rocky Mt. region and west contain descriptions 

 of the species. 



LEPTOTES (from the Greek, referring to the slen- 

 der parts) . Orchiddcese. Small terrestrial or epiphytic 

 herbs of slender habit bearing racemes with few pretty 

 flowers produced in spring. 



Stems erect, not pseudobulbous, growing from a 



