1830 



LAVANGA 



LAWSONIA 



should be intro. into the U. S. for trial as stocks for 

 citrous frs., and for use in breeding experiments. The 

 name is commonly spelled Luyunga, but appears as 

 Lavanga in the original publication. 



scandens, Buch.-Ham. (Limonia scdndens, Roxbg.)- 

 Climbing shrubs with fragrant white fls. and yellowish 

 resinous frs. the size of a pigeon's egg. This strong- 

 growing scandent shrub occurs in India and the 

 Malayan peninsula. WALTER T. SWINGLE. 



LAVATERA (one of the Lavater family of Zurich, 

 at the time of Tournefort). Malvaceae. Flower-garden 

 annuals and biennials, and some ornamental shrubs, 

 the taller known as tree mallows. 



Herbs, shrubs and trees, tomentose or hairy: Ivs. 



2117. Lavatera insularis. (X 1 A) 



angled or lobed, sometimes maple-like: fls. sometimes 

 2-4 in. across, variously colored, rarely yellow, solitary 

 in the axils or borne in terminal racemes; column of 

 stamens divided at the summit into an indefinite num- 

 ber of filaments; petals 5; ovaries few to many, united 

 about an axis which is conical or umbrella-shaped at 

 top; fl.-bractlets 3-6 or 9, joined into an involucre. 

 Species about 25, mostly in the Medit. region, but 

 extending to the Canaries, Asia, Austral., and the 

 islands off S. and Lower Calif. 



These plants are of the easiest culture, the first 

 species being the commonest, and all propagated by 

 There seem to be no double forms. 



A. Plant annual, herbaceous. 



trimestris, Linn. (L. rosea, Medikus). Fig. 2116. 

 Height 3-6 ft.: Ivs. nearly glabrous, upper ones angled: 

 fls. rosy, 4 in. across: receptacle or axis of the fr. 

 expanded at the apex into a disk, inclosing the ovary. 



Medit.region. B.M.109. Gn.24,p.89;51,p.212;53:62; 

 61, p. 180; 65, p. 354. Gn. W. 23:363. Var. alba, Hort., 

 has white fls. Var. splendens, Hort., is an improved gar- 

 den strain. Gn. 73, p. 314. G. 33:141. This species is an 

 excellent flower-garden subject, of the easiest cult., usu- 

 ally growing 2-3 ft. in height and blooming summer 

 and autumn, with attractive rose-pink or red fls. 



AA. Plant biennial, woody at the base. 

 arbdrea, Linn. With annual flowering branches, 

 forming a shrub 3-10 ft. high or less: Ivs. 5-9-lobed, 

 softly downy on both sides, rarely nearly glabrous: fls. 

 pale purple-red, about 2 in. across: receptacle small, 

 marked with little pits, not exserted. Eu. Cult, in the 

 form of var. variegata, which has mottled Ivs. Gn. 23, 

 p. 114. G.Z. 28, p. 49. V. 8:99. 



AAA. Plant perennial, shrubby or even tree-like. 



B. Fls. 1-4 in the axils, pedicelled. 

 assurgentifldra, Kellogg. Shrubby, 6-15 ft. 

 high: Ivs. glabrous or sparingly stellate-pubes- 

 cent, 5-7-lobed, 3-6 in. wide: fls. purple; 

 petals 1-1 14 in. long, with long, narrow, gla- 

 brous claws, and a pair of dense, hairy tufts 

 at the base: axis of the fr. low-conical, about 

 as long as the carpels. S. Calif. Isls. It 

 makes a strong, round-headed shrub, with 

 large red fls., and is one of the best plants 

 to stand saline winds. Used extensively as a 

 windbreak for vegetable-gardens about San 

 Francisco, and is common in old yards 

 throughout Calif., and has been suggested for 

 forage; very resistant to drought. From seed 

 it will reach 6 ft. or more and will bloom 

 within a year. 



BB. Fls. solitary, sessile. 

 Olbia, Linn. Perennial, shrubby, about 6 

 ft. high: hairs of the st. pilose, somewhat clustered, dis- 

 tant: Ivs. softly tomentose, lower ones 5-lobed, upper 

 3-lobed, highest oblong, scarcely divided: fls. reddish 

 purple. S. Eu. G. 36:733. Cult, in England, where 

 it occasionally sows itself. 



BBB. Fls. solitary, stalked. 



insularis, Wats. Fig. 2117. Low bush, cinerous- 

 puberulent, with 7-lobed obtusely dentate Ivs.: fls. on 

 pedicels shorter than themselves, yellowish white 

 striped and tipped with purple, the petals long-spatu- 

 late and emarginate; bractlets spatulate, almost dis- 

 tinct: fr. of about 10 carpels, in an enlarged calyx. 

 Coronados Isls., near S. Calif. G.F. 9:165 (reduced in 

 Fig. 2117). Probably not cult, outside amateurs' 

 collections in S. Calif. WILHELM MILLER. 



LAVENDER: Lavandula. L ' H ' B 't 



LAVENDER COTTON : Santolina Chamsecyparissus. 

 LAWN: Landscape Gardening, pp. 1816-1818. 



LAWSONIA (John Lawson, who published, in 1709, 

 an account of his travels in North Carolina; see page 

 1505). Lythracese. HENNA. Shrubs, grown in Florida 

 and southern California for ornament. 



Sometimes becoming arborescent, 6-25 ft., glabrous, 

 the branches more or less spinescent: Ivs. opposite, 

 lanceolate, attenuate into a petiole or a narrow base, 

 entire, acute: fls. 4-merous, rather small, in terminal 

 panicled cymes; calyx-tube very short or none, the 

 lobes 4; petals 4, ovate, wrinkled, on the top of the 

 calyx-tube; stamens usually 8, exserted, sometimes 

 only 4 and sometimes 12; ovary 4-celled, with a long 

 style and a capitate stigma: caps, globose, exserted 

 beyond calyx. One variable species as defined by 

 Koehne (Engler's Pflanzenreich, hft. 17, 1903). 



inermis, Linn. A handsome shrub with many very fra- 

 grant fls. Var. alba, Hassk. (L. alba, Lam.) has white 



