RHAMNE.E. XV. COLUBRINA. XVI. CEANOTHUS. 



37 



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



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



13 C. ? TRI'QUETRA ; leaves elliptical-ovate, finely acuminated, 

 sharply serrulated, acute at the base, with parallel pubescent 

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

 fascicled, 1 -flowered; capsules acutely 3-cornered. Jj . G. Na- 

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

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



Triquetrous-capsuled Snake-wood. Shrub. 



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

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

 Tj . S. Native of the island of Timor. Ceanothtis pubiflorus, 

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



Downy-flowered Snake-wood. Shrub. 



1.5 C. LESCHENAU'LTII ; leaves ovate, long-acuminated, some- 

 what cordate at the base, crenulately-serrated, smooth above, 

 hoary beneath from very minute down ; cymes axillary, many- 

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

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

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



Leschenault's Snake-wood. Shrub 10 feet. 



* * * African species. 



16 C. GUINEE'NSIS ; leaves elliptical-oblong, acutish at both 

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

 flowered, axillary, hoary-velvety. Tj . S. Native of Guinea. 

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

 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. I? . w . G. 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 

 upper part of the branches. Flowers greenish-white. Ovary 

 immersed in a snow-white glandular disk, filling the tube of the 

 calyx. Stigma trifid. 



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



Cult. These plants are not worth cultivating except in 

 general collections. A mixture of loam and peat will suit them 

 well, and cuttings of young wood will root readily if planted in 

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

 require heat. 



XVI. CEANO'THUS (wcu'wOoe, Jceanothus, a name em- 

 ployed by Theophrastus to designate a spiny plant, derived from 

 Ktu, keo, to cleave ; however the modern genus has nothing to do 

 with the plant of Theophrastus). Brogn. mem. rhamn. p. 62. 

 Ceanothus species, Lin. Juss. Lam. Ceanothus, sect. 2. Eucea- 

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



LIN. SYST. Pentdndna, Trigynia. Calyx with a sub-hemis- 

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

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

 2-celled anthers (f. 6. C. 6.). Disk spongy, annular (f. 6. C. d.). 

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

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

 coccous (f. 0. C. /.), girded by the circumcised tube of the, calyx 

 (f. 6. C. g.~). Seeds almost sessile (f. 6. C. e.}. Smooth or 

 pubescent shrubs, natives of North America, with erect 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- 



neath ; thyrse elongated, axillary, with a downy rachis ; pedicels 

 smooth. Jj . G. Native of Mexico, on the road to St. Angelo. 

 Ker. bot. reg. t. 291. C. caeruleus, Lag. gen. et spec. 1816. p. 

 11. Lodd. bot. cab. t. 110. C. bicolor, Willd. in Schult. syst. 7. 

 p. 65. ex fl. mex. icon, et descr. ined. Flowers pale-blue. Tin- 

 bark is febrifugal. 



^zre-flowered Red-root. Fl. Ap. May. Clt. 1818. Sh. 10 ft. 



2 C. TARDIFLORUS (Horn. hort. hafn. 230.) leaves cordate, 

 ovate, serrated, downy beneath ; thyrse elongated, axillary. I? . 

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

 following. Flowers white. 



Lale-Jlowering Red-root. Fl. Sep. Nov. Clt. 1820. Sh. 6 ft. 



3 C. AMERICA'NUS (Lin. spec. 284.) leaves ovate, acumi- 

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

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

 dry woods, from Canada to Florida. Duliam. arb, l.t. 51. Mill, 

 fig. t. 57. Sims, bot. mag. t. 1479. Flowers small, white. 

 Fruit bluntly trigonal. In North America this shrub is com- 

 monly known by the name of New Jersey tea, or Red-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 wiUrdye wool a fine strong nankin-cinnamon 

 colour. A beautiful shrub when in flower. 



American Red-root or New Jersey tea. Fl. June, July. Clt. 

 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 ? (7 . H. Native of North America. 

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

 is usually confounded in gardens with the preceding. 



Grate-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 

 stems scarcely ever remain over winter; but die down to the 

 root. Flowers white or yellow. 



Perennial Red-root. Fl. May, Ju. Clt. 1822. PI. 2 feet. 



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

 10. p. 281.) leaves oval, 3-nerved, serrulated, smooth ; stem 

 many-angled ; panicle thyrsoid in the axillary branches, fj . H. 

 Native of New California. 



TInjrse-jlon'ered Ceanothus. Shrub. 



7 C. INTERME'DIUS (Pursh, fl. sept. amer. 1. p. 167.) leaves 

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

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

 corymbose pedicels. T? . H. Native of North America, in the 

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

 of C. Amencanus. Flowers white. 



Intermediate Red-root. Fl. Ju. July. Clt. 1812. Sh. 2 to 4 ft. 



8 C. SANGUI'NEUS (Pursh, fl. sept. amer. 1. p. 167.) leaves 

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

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

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

 banks of the Missouri. Branches blood-red or purple. Panicles 

 not longer than the leaves. Flowers white. 



Zf/oorfy-branched Red-root. Fl. May, June. Clt. 1812. 

 Shrub 2 to 3 feet. 



9 C. MICROPHY'LLUS (Michx. fl.'bor. amer. 1. p. 154.) leaves 

 oblong, obtuse, entire, minute, sub-fascicled, smooth ; branches 

 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-root. Fl. May, June. Clt. 1806. Sh. 2 ft. 



