RHAMNE^. XV. Colubrina. XVI. Ceanothus. 



37 



neatli ; thyrse elongated, axillary, with a downy racliis ; pedicels 

 smooth. Tj- G. Native of Mexico, on tlic road to St. Anj^elo, 



Ker. hot. reg. t, 291. C. caeruleus, Lag. gen. et spec. 18 IG. p. 



taining 3 nuts. This will probably prove to be a species of 



Willemetia. 

 Nipaul Snake-wood, Fl. May, Ju. Clt. 1820. Sh. rambling. 



13 C. ? tri'quetra ; leaves elliptical-ovate, finely acuminated, 11. Lodd. bot. cab, t, 110. C. bicolor, Willd. in Schult. syst. 7. 

 sharply serrulated, acute at the base, with parallel pubescent p. 65. ex fl. mex. icon, et descr. ined. Flowers pale-blue. The 

 ribs, villous at their axillae beneath; peduncles axillary, short, 

 fascicled, 1 -flowered; capsules acutely 3-cornered. 12- Cr. Na- 

 tive of Nipaul, at Shreenugur. Ceanothus triquetrus, Wall. fl. 

 ind. 2, p. 376. Leaves pubescent when young. 



TnVj'we^row5-capsuled Snake-wood. Shrub. 



14 C? PUBiFLORA ; leaves elliptical-oblong, acute, serrated. 



bark is febrifugal. 



^;r?;re-flowered Red-root. Fl. Ap. May. Clt. 1818. Sh. 10 ft. 



2 C. TARDiFLORUs (Hom. hort. liafn. 230.) leaves cordate, 

 ovate, serrated, downy beneath ; thyrse elongated, axillary. T2 • 

 H. Native of North America. Perhaps only a variety of the 

 following. Flowers white. 



Late-Cowering Red-root. Fl. Sep. Nov. Clt. 1820. Sh. G ft. 



3 C. America'nus (Lin. spec. 284.) leaves ovate, acumi- 

 nated, serrated, pubescent beneath ; thyrse elongated, axillary, 

 with a pubescent rachis. T? . H. Native of North America, in 



15 C. Leschenau'ltii ; leaves ovate, long-acuminated, some- dry woods, from Canada to Florida. Duham. arb. l.t. 51. Mill. 

 what cordate at the base, crenulately-serrated, smooth above, fig. t. 57. Sims, bot. mag. t. 1479. Flowers small, white, 

 hoary beneath from very minute down ; cymes axillary, many- Fruit bluntly trigonal. In North America this shrub is corn- 



smooth ; flowers axillary, crowded, velvety, on short pedicels. 

 ^ . S. Native of the island of Timor. Ceanothus pubiflorus, 

 D. C. prod. 2. p. 30. 



. Downy-flowered Snake-wood. Shrub. 



flowered, almost sessile, length oi petioles. Tj . S. Native oi 

 Ceylon. Ceanothus Leschenaultii, D. C. prod. 2. p. 30. 

 Branches minutely-pubescent at the top, as well as the calyxes. 

 Leschenaidfs Snake-wood. Shrub 10 feet. 



* * ♦ 



African species. 



monly known by the name of New Jersey tea, or lied-root, 

 having been actually used in the American war as a substi- 

 tute for tea. The Canadians use the infusion of the root in 

 gonorrhoea, and other authors attribute to it antisyphilitic 

 properties. It will dye wool a fine strong nankin-cinnamon 

 colour. A beautiful shrub when in flower. 



16 C. Guinee'nsis ; leaves elliptical-oblong, acutish at both American Red-root or New Jersey tea. Fl. June, July, Clt. 



ends, quite entire, on short stalks ; cymes corymbose, many- 

 flowered, axillary, hoary-velvety. T2 • S. Native of Guinea. 

 Ceanothus? Guineensis, D.C. prod. 2. p. 30. Rhamnus pani- 



1713. Shrub 2 to 4 feet. 



4 C. ova'tus (Desf. arb. 2. p. 381.) leaves ovate or oval, 

 serrated, smooth on both surfaces, as well as the peduncles ; 

 thyrse short, axillary ? Pj • H. Native of North America. 

 Fruit somewhat globose, 6-ribbed. Flowers white. This plant 

 is usually confounded in gardens with the preceding. 



Ora/e-leaved Red-root. Fl. Ju. July. Clt. 1818. Sh. 2 to 4 ft. 



5 C. pere'nnis (Pursh. fl. amer- sept. 1. p. 167.) leaves oval, 

 somewhat serrated, smooth ; panicle thyrsoid, terminal, and 

 axillary. 2/. H. Native of North America, on rocks near 

 rivers, in Virginia and Carolina. C. herbaceus, Rafin. The 



upper part of the branches. Flowers greenish-white. Ovary stems scarcely ever remain over winter, but die down to the 



immersed in a snow-white glandular disk, filling the tube of the root. Flow^ers white or yellow. 



culatus, Thonn. 



Guinea Snake-wood. Shrub 6 feet. 



17 C? mystaci'nus ; leaves cordate, obtuse, quite entire, 

 smooth above, but rather hairy beneath ; branches ending in a 

 tendril ; flowers axillary, umbellate. ^2.^.0. Native of 

 Abyssinia. Rhamnus mystacinus. Ait. hort. kew. ed. 1. p. 266. 

 Ceanothus? mystacinus, D. C. prod. 2. p. 31. Stem weak, 

 climbing to a considerable extent by means of tendrils from the 



Perennial Redi-rooU Fl. May, Ju. Clt. 1822. PL 2 feet. 

 6 C. tiiyrsiflorus (Eschscholtz, mem. acad. scienc. peters 



calyx. Stigma trifid. 



Bearded Snake-wood. Fl. Nov. Clt. 1775. Shrub cl. 

 ■ Cult. These plants are not worth cultivating except in 10. p. 281.) leaves oval, 3-nerved, serrulated, smooth; stem 

 general collections. A mixture of loam and peat will suit them many-angled ; panicle thyrsoid in the axillary branches. ^i.W. 

 ^vell, and cuttings of young wood will root readily if planted in Native of New California. 



Thyrse-flowered Ceanothus. Shrub. 



7 C. interme'dius (Pursh, fl. sept. amer. 1. p. 1C7.) leaves 

 oblong-oval, acute, mucronately-serrulated, triple-nerved, pu- 

 bescent beneath ; panicles axillary, on long peduncles, with loose 

 corymbose pedicels* ^ . H. Native of North America, in the 

 woods of Tennessee. Leaves not one-fourth the size of those 



sand, and placed under a hand-glass ; those of the stove species 

 require heat. 



XVI. CEANOTHUS (ktai'wSoc, heanothus^ a name em- 

 ployed by Theophrastus to designate a spiny plant, derived from 

 few, heoj to cleave ; however the modern genus has nothing to do 

 with the plant of Theophrastus). Brogn. mem. rhamn. p. 62. — of C.Americanus. Flowers white. 



Ceanothus species, Lin. Juss. Lam. Ceanothus, sect. 2. Eucea- Intermediate Red-root. Fl. Ju. July. Clt. 1812. Sh. 2 to 4 fu 



8 C. SANGUINEUS (Pursh, fl. sept. amer. 1. p. 167.) leaves 

 oblong-obovate, serrated, pubescent beneath ; panicles axillary, 

 thyrsoid, on very short peduncles ; pedicels aggregate. Tj . H. 

 Native of North America, near the Rocky Alountains, on the 



nothus, D. C. prod. 2. p. 31. 



Lin. syst. Pentdndria, Trigynia. Calyx with a sub-hemis- 

 pherical tube, and 5 connivent segments (f. 6. C. b.). Petals 5, 

 unguiculate, cucullate (f. 6. C. c), deflexed. Stamens with ovate 



). Disk spongy, annular (f. 6. C. d.). banks of the Missouri. Branches blood-red or purple. Panicles 



vary spherical, girded by the disk (f. 6. C. e.), 3-celled. Styles 

 3, diverging, terminated by small papiliform stigmas. Fruit tri- 

 coccous (f. 6. C.y.), girded by the circumcised tube of the calyx 



\}. b. C ^,\ Seeds almoat: spssiIp (f. 6. C. e.\ — Smooth or 



not longer than the leaves. Flowers white. 



Bloody-hranchcd Red-root. Fl. May, June. Clt. 1812. 

 Shrub 2 to 3 feet. 



9 C. micropiiy'llus (Michx. fl. bor. amer. 1. p. 154.) leaves 



pubescent shrubs, natives of North America, with erect branches, oblong, obtuse, entire, minute, sub-fascicled, smooth; branches 



alternate, serrated, 3-nerved leaves, and very slender, white, 

 blue or yellow flowers, disposed in terminal panicles or in axil- 

 lary racemes. 



1 C. azu'reus (Desf. cat. 1815. p. 232.) leaves ovate-oblong, 

 obtuse, acutely-serrated, smooth above, hoary and downy be- 



straight, somewhat decumbent; corymbs stalked, loose, ter- 

 minal. ^2 . H. Native of North America, in sandy woods, 

 from Carolina to Florida. C. hypericoides, Lher. mss. Leaves 

 3-4 lines long. Fruit almost globular. Flowers white. 



Small-leaved Red-rooU Fl. May, June. Clt. 1806. Sh. 2 ft. 



