CANNA 



CANNABIS 



657 



long, green tinged with red; petals lanceolate, acumi- 

 nate, \ l /z in. long, pale scarlet; staminodia 2, long 

 and narrow, mostly emarginate; lip yellow-spotted: 

 caps, globose and small. W. Indies, Cent, and S. Amer. 

 C. formosa, Bouche, Brazil, has 3 unlike staminodia. 



DD. Staminodia 2-lobed. 



19. sylvestris, Roscoe (C. portoricensis, Bouche 1 ). 

 Plant stout, 4-5 or 6 ft.: Ivs. long-oblong or oblong- 

 lanceolate, acuminate, bright green, to 2^ ft. long and 

 one-third as wide: raceme slender, usually squarrose, 

 rarely simple; fls. narrow and elongated, red; sepals 

 lanceolate and acute, J^in. long; petals much longer, 

 lanceolate and very acuminate; staminodia sub-equal, 

 narrow-spatulate; lip narrow, strongly revolute. W. 

 Indies, Cent. Amer. C. limbata, Roscoe (C. patens, 

 Hook. C. aureo-vittata, Lodd. C.floribunda,C.variegdta, 

 C. recurvata, C. loeta and C. ventricbsa, Bouche), of S. 

 Brazil, has unlike staminodia, the largest being 2-lobed, 

 the medium one emarginate, the other entire, all red with 

 yellow margins. B.R. 771. L.B.C. 449. 



cc. Plant tall, often up to 10ft. (No. 21 perhaps excepted). 



D. Staminodia of medium length (3 in. or less). 



E. The staminodia not united. 



20. edftlis, Ker (C. esculenta, Lodd. C. rubricaulis, 

 Link). Rootstock thick and edible: st. stout, 8-12 ft., 

 purple: Ivs. large, oblong, or ovate-oblong, green or 

 bronze, 1-2 ft. long: raceme lax, forked or simple; fls. 

 red or brick-red, usually in pairs, the bracts orbicular 

 or oblong; sepals oblong-lanceolate, Min. long, tinged 

 with red; petals oblong-lanceolate, 1^4 m -j staminodia 

 entire or emarginate, 2^ in. long, bright red or orange; 

 lip bright red or yellow-red: caps, large. W. Indies, S. 

 Amer. B.M. 2498. B.R. 775. Starch is procured from 

 the roots, and for this purpose the plant is widely cult, 

 in the tropics. 



21. Warscewiczii, Dietr. (C. sanguinea, Warsc.). St. 

 claret-purple and glaucous, 3-4 ft.: Ivs. oblong and 

 acute, more or less claret- or bronze-tinged, Htt- long 

 and nearly one-half as broad: raceme simple and 

 rather dense, with ovate, brown, glaucous bracts; 

 sepals lanceolate, Hin., glaucous purple; petals lanceo- 

 late, acuminate, nearly 2 in. long, reddish and glaucous; 

 staminodia oblanceolate, entire, 2J/2-3 in. long, bright 

 scarlet; lip oblanceolate, emarginate, bright scarlet. 

 Costa Rica, Brazil. B.M. 4854. C. Selldi, Hort. (C. 

 patens, Baker), of S. Brazil, is tomentose: sepals ovate; 

 petals oblong-lanceolate, united into a tube; staminodia 

 strongly reflexed, one 2-parted. 



EE. The staminodia united into a tube, or at least connate 

 at base. 



22. Lambertii, Lindl. (C. Pceppigii, Bouche 1 ). St. 

 stout, very tall (to 10 or 11 ft.): green and glabrous, 

 12-14 ft. : Ivs. oblong-lanceolate to elliptic, green, acute: 

 raceme simple or forked, lax and few-fld., the bracts 

 large and oblong, green; sepals lanceolate, pale purple 

 or lilac, H m - long; petals lanceolate, acuminate, 1^ 

 in. long, purple; staminodia unlike, obovate, entire, 

 scarcely longer than the petals, connate at base, bright 

 crimson; lip bright crimson-purple: caps, oblong, large. 

 W. Indies, S. Amer. B.R. 470. 



23. latifdlia, Miller (C. gigantca, Desf. C. macro- 

 phylla, Hort. C. neglecta, Weinm. C. gemella, Nees. 

 C. Altenstemii, Bouch6). St. stout, very tall (10-16 ft.) 

 pubescent: Ivs. ovate or ovate-oblong, acute, green, but 

 purple-margined when young, the lower ones often 

 3-4 ft. long: fls. in several racemes forming a panicle, 

 the bracts oblong or the lower ones becoming several 

 inches long; sepals oblong and green, Kin. long, very 

 unequal, petals lanceolate, acuminate, 2 in. long, 

 scarlet; staminodia united into a tube, entire at apex 

 or one of them 2-lobed, somewhat twisted, brick- 

 red; lip brick-red : caps, large. S. Amer. L.B.C. 7:634. 



C. heliconiifdlia, Bouche, Texas to Venezuela, has 

 the staminodia more or less connivent: fls. orange- 

 red: Ivs. long-petioled, more or less woolly, oblong- 

 acuminate: plant 7-8 ft. Var. xalapensis, Kranzl 

 (C. xalapensis, Bouch6), has narrower Ivs. and smaller 

 stature. 



DD. Staminodia large (5 in. or less long), united into 



a tube. 

 E. F Is. pendulous, rose-colored. 



24. iridifldra, Ruiz & Pav. St. green, 6-12 ft.: Ivs. 

 broad-oblong, bright green, slightly pubescent beneath: 

 racemes paniculate, drooping; fls. large, beautiful rose- 

 color; tube of corolla and staminodia as long as the 

 blade; sepals lanceolate, 1 in. long; corolla-lobes lanceo- 

 late, 2K in. long; 3 upper staminodia somewhat longer 

 than the corolla-lobes, obovate, nearly or quite 1 in. 

 broad, rose-crimson; lip narrow, deeply emarginate, 

 rose-crimson. Andes of Peru. B.M. 1968. B.R. 609. 

 L.B.C. 10:905. R.H. 1861:110. 



784. Stool of canna, showing how it may be divided. 



EE. Fls. erect-spreading, white and red. 

 25. liliifldra, Warsc. St. robust, green, 8-10 ft.: 

 Ivs. many, oblong, green, 3-4 ft. long, spreading from 

 the st. at a right angle: fls. in a corymbose panicle; 

 sepals linear, as long as the tube of the corolla; corolla- 

 lobes lanceolate, 2-3 in. long, pale green, the tube of 

 equal length; 3 upper staminodia white, united into a 

 tube for half their length, the blade obovate and spread- 

 ing; lip oblanceolate, as long as the staminodia. Colom- 

 bia. R.H. 1884:132. F.S. 10:1055^. A fine species. 

 The white fls. 'finally become tinged with brown; 

 lonicera-scented. L. H. B. 



CANNABIS (the ancient Greek name). Moracese. 

 HEMP. A widely cultivated fiber plant, and also used 

 occasionally as an ornamental subject, being grown 

 from seeds and treated as a half-hardy annual. 



Hemp is dioecious: staminate fls. in axillary panicles, 

 with 5 sepals and 5 drooping stamens and no petals; 

 pistillate fls. in short spikes, with 1 sepal folding about 

 the ovary: Ivs. digitate, with 5-7 nearly linear, coarse- 

 toothed Ifts. : fr. a hard and brittle achene. C. sativa, 

 Linn., probably native in Cent. Asia, is now escaped in 

 many parts of the world: tall, rough and strong- 

 smelling, 8-12 ft.: Ifts. 5-11, linear-lanceolate, toothed, 

 the upper Ivs. alternate and the others more or less 

 opposite. Only one species, but various forms have 

 received specific names. In gardens, the form known 

 as C. gigantea is commonest; this reaches a height of 10 

 ft. and more. The seeds are usually sown where the 



