CEANOTHUS 



CEDRELA 



697 



12. divaricatus, Nutt. Tall, erect shrub, with usually 

 glaucous branches and often spiny: Ivs. ovate, obtuse or 

 nearly acute, glaucous and glabrous or grayish tomen- 

 to.> below, fcfr-1 in. long: fls. pale blue, sometimes 

 whitish, in 2-3 in. long, narrow panicles. April-June. 

 Calif. Gn. 74, p. 425 (habit). 



DD. Branchlets angled, spiny. 



13. spindsus, Nutt. Tall shrub, sometimes arbores- 

 cent: branchlets glabrous: Ivs. elliptic to oblong, thinly 

 coriaceous, rounded or broadly cuneate at the base, 

 very obtuse or emarginate, scarcely 3-nerved, glabrous, 

 ]/y-\\^, in. long: fls. light blue to almost white in large 

 terminal panicles 4-6 in. long. Spring. Cent, and S. 

 Calif., Coast Range and down to sea-level. S.S. 13:621. 



AA. Lvs. opposite, persistent. 



14. cuneatus, Nutt. Tall, much-branched shrub: Ivs. 

 epatulate or cuneate-obovate, mostly obtuse, entire, 

 minutely tomentose beneath, J^-l in. long: fls. white, 

 in small clusters along the branches. March-May. 

 Ore. to Calif. B.H. 8:170. 



15. prostratus, Benth. Procumbent shrub: Ivs. cu- 

 neate, obovate or spatulate, coarsely and pungently 

 toothed, sometimes only 3-pointed at the apex, often 

 minutely silky when young, y 2 -l in. long: fls. blue, in 

 clusters, terminal on short branchlets. Spring. Wash, 

 to Calif. 



C.africanus, Linn.=Noltea af ricana. C. dentatus, Torr. & Gray. 

 Low shrub: Ivs. oblong, penninerved, dentate, glandular-papillate 

 above, loosely hairy: fls. blue, in peduncled clusters. Calif. F.S. 

 6:567, 2. B.H. 3:101. C. dentatus var. floribiindus, Trel. (C. 

 floribundus, Hook.). Fl.-clusters numerous, nearly sessile: Ivs. 

 smaller. B.M. 4806. F.S. 10:977. I. H. 7:238. B.H. 5:129. C. 

 folidsus. Parry. Low shrub: Ivs. small, broadly elliptic, glandular- 

 toothed, slightly hairy, pale or glaucous beneath: fls. deep blue, in 

 numerous small clusters. Calif. C Isevigatus, Douglas. Tall shrub: 

 Ivs. broadly elliptic, serrate, glabrous, glaucous beneath: fls. yellow- 

 ish white, in large panicles. Calif. C. microphyllus, Michx. Low 

 shrub: Ivs. very small, obovate or elliptic, nearly glabrous: fls. 

 white, in small, short-peduncled clusters. C. papittdsus, Torr. & 

 Gray. Low shrub: Ivs. narrow-oblong, dentate, glandular-papillate 

 above, villous beneath: fls. deep blue, in peduncled, axillary oblong 

 clusters. Calif. B.M. 4815. F.S. 6:567, 1. P.F.G. 1, p. 74 R.H. 

 1850:321. C. Pdrryi, Trel. Large shrub: Ivs. elliptic or ovate, den- 

 ticulate, cobwebby beneath: fls. deep blue, in peduncled, narrow 

 panicles. Calif. C. rlgidus, Nutt. Rigid, much-branched shrub: 

 Ivs. opposite, cuneate-obovate, denticulate, usually glabrous, small: 

 fls. blue, in small, nearly sessile, axillary clusters. Calif. B.M. 4660 

 (as C. verrucosus) and 4664. J.F. 3:316; 4:348. C. verruc6sus, 

 Nutt. Low shrub: Ivs. mostly alternate, roundish obovate, emar- 

 ginate, denticulate, nearly glabrous, small: fls. white, in small, 

 axillary clusters along the branches. Calif. C. verrucdsus, Hook.= 



C. rigidus. ALFRED REHDER. 



CEARA RUBBER: Manihot. 

 CEBATHA: Cocculus. 



CECROPIA (from Greek word referring to use of 

 the wood of some species in making wind instru- 

 ments). Moracese. Milky-juiced trees, with peltate 

 leaves, sometimes planted in grounds in tropics and 

 warm countries. 



Leaves large, alternate, long-petioled, the blade cir- 

 cular in outline; segms. or Ifts. 7-11: dioecious; fls. very 

 email, sessile in cylindrical heads or receptacles, which 

 are arranged in umbels; calyx tubular and petals 0; 

 sterile fls. with 2 stamens; fertile fls. with free ovary 

 and divided stigma: frs. small 1-seeded nuts combined 

 into short spikes. Species about 40, from Mex. to 

 Brazil. C. peltata, Linn., is the trumpet-tree of the 

 W. Indies and S. It is a middle-sized tree with Ivs. 

 1 ft. across; hollow branches used for the making of 

 wind instruments. The juice of some species yields 

 rubber. The hollow stems are often perforated by ants, 

 which nest and rear their young in them. 



palmata, Willd. Fig. 848. A characteristic tree of 

 the farther W. Indies (and planted somewhat in S. 

 Fla.), with a single long weak thin trunk and at the top 

 a few horizontal or deflexed awkward branches bear- 

 ing at their ends large palmate Ivs. with divisions like 

 thumbs, the trunk and branches partitioned at the 



nodes: Ivs. 7-11-lobed to the middle, white-tomentose 

 beneath, the lobes oblong-obovate and blunt. The 

 tree attains a height of 50 ft.: wood soft; branches 

 more or less hollow; grows rapidly, like an herb; often 

 covering areas that have recently been burned over. 



L. H. B. 



CEDAR: Cedrus, Juniperus. 



CEDAR, WHITE: Thuya, Chamxcyparis. 



CEDAR, WEST INDIAN: Cedrela. 



CEDRELA (from Cedrus, the wood resembling that 

 of Cedrus). Melidcese. Including Todna. Ornamental 

 trees, grown for their handsome foliage; some are 

 valuable timber trees. 



Trees with alternate, usually abruptly pinnate Ivs., 

 without stipules: Ifts. petioled, entire or slightly serrate: 

 fls. inconspicuous, whitish, usually perfect, 4-5-merous, 

 in large, pendulous, terminal panicles; calyx short, 

 4-5-parted, the petals forming a tube with spreading 

 limb, below partly adnate to the disk; stamens shorter 

 than petals; ovary 5-celled; style simple, with capitate 

 stigma, somewhat longer than the stamens: fr. a caps., 

 dehiscent, with 5 valves not splitting to the base, with 

 many flat, winged seeds. Nine species in Trop. Amer. 

 and 8, forming the subgenus Toona, in E. India and 

 Austral. Toona is often considered a distinct genus, 

 distinguished from Cedrela by the disk being much 

 longer than the ovary and by the seeds being winged 

 above or at both ends, while in Cedrela the disk is as 

 long or shorter than the ovary and the seeds are winged 

 below. The first 3 species below belong to the sub- 

 genus Toona, the others are true cedrelas. 



Cedrelas are tall ornamental trees with large pinnate 

 f oliage, well adapted for avenues : C. sinensis is hardy as 

 far north as Massachusetts; the others are hardy only 

 in southern California and in the Gulf states except C. 

 odorata, which is tender even there. The wood of some 

 species, particularly of C. odorata, is known as cedar 

 wood, and much valued for making furniture and 

 boxes. They thrive best in rich loam, and are propa- 

 gated by seeds or by cuttings of mature wood, and, also, 

 by root-cuttings, all with bottom heat. 



848. Cecropia 

 palmata. 



