JASMINUM 



JASMINUM 



1717 



Jasmines are of diverse horticultural groups. Some of 

 them are hardy in the middle and southern states, 

 whereas others are winter-flowering warmhouse plants. 

 Most of them are known as coolhouse or temperate- 

 house shrubs, of half -climbing habit. They are all of 

 easy culture. They propagate readily by cuttings of 

 nearly mature wood and by layers. The species are 

 usually called jasmines although the word jessamine is 

 really the same. J . officinale is the jessamine of poetry. 

 Some of them (particularly J. grandiflorum) are grown 

 for perfume-making. The Cape jessamine is Gardenia, 

 although there is a Jasminum capense. Yellow or 

 Carolina jessamine is Gelsemium. The hardiest kinds 

 are J. humile, J. fmticans, J. floridum, J. nudiflorum, 

 J. primulinum, J. officinale, but none of them is reliable 

 north of Washington without protection, and even then 

 only seldom north of Philadelphia. 



affine, 13. 

 anastomosans, 2. 

 angulare, 15. 

 aureum, 17. 

 azoricum, 12. 

 Beesianum, 11. 

 capense, 15. 

 flavum, 20. 

 floribundum, 14. 

 floridum. 23. 

 fruticans, 19. 

 glabratum, 15. 

 gracile, 1. 

 gracillimum, 8. 

 grandiflorum, 16. 



INDEX. 



hirsutum, 7. 

 humile, 20. 

 ligustrifolium, 3. 

 lucidum, 1. 

 luteum, 19. 

 Maingayi, 10. 

 multiflorum, 7. 

 multipartitum, 4. 

 nitidum, 9. 

 nudinorum, 17. 

 odoratissimum, 22. 

 oflScinale, 13. 

 poeticum, 13. 

 primulinum, 18. 

 pubescens, 7. 



pubigerum, 21. 

 Reevesii, 20. 

 revolutum, 20. 

 rigidum, 3. 

 Sambac, 5. 

 Sieboldianum, 17. 

 simplicifolium, 1. 

 subulatum, 23. 

 syriacum, 19. 

 trifoliatum, 5. 

 trinerve, 2. 

 triumphans, 20. 

 undulatum, 6. 

 Wallichianum, 20. 



A. Lvs. apparently simple (reduced to 1 Ift.). 



B. Fls. white. 

 c. Calyx glabrous (No. 4 not considered). 



1. simplicifolium, Forst. (J. lucidum, Banks. J. 

 grdcile, Andr.). Climber, or sometimes a tree in its 

 native place, glabrous or pubescent : Ivs. opposite, 

 mostly short-stalked, shining, varying from oblong- 

 elliptic to ovate-lanceolate to cordate-ovate, acute or 

 obtuse, usually less than 3 in. long: fls. white, in termi- 

 nal forking, many-fld. clusters; calyx-teeth short and 

 sometimes scarcely any; corolla-tube M~Hin. long, the 

 acute lobes somewhat shorter. Austral. B.M. 980. 

 B.R. 606. Summer bloomer. 



2. trinerve, Vahl. Tall-climbing, with terete gla- 

 brous branches: Ivs. opposite, short-stalked, ample, 

 ovate-oblong and acuminate, strongly 3-nerved from 

 the base: fls. white, in small clusters; calyx-teeth nar- 

 row but much shorter than the long corolla-tube; 

 corolla-lobes only half as long as the tube, acute. India. 

 B.R. 918. Perhaps only a form of J. anastomosans, 

 Wall. 



3. rigidum, Zenker (J. ligustrifolium, Wall.). Com- 

 pact dense rigid glabrous shrub, scarcely climbing: Ivs. 

 opposite, 2 in. long, ovate or elliptic, shining green, 

 more or less acute at both ends but not acuminate, 

 coriaceous, with reticulating nerves: fls. white, fra- 

 grant, in few-fld. dense sessile cymes; calyx-teeth lin- 

 ear, erect; corolla-tube 1 in. long, exceeding the lobes. 

 India. 



4. multipartitum, Hochst. Erect bushy shrub, to 10 

 ft., the branches minutely puberulent: Ivs. simple, 

 ovate-lanceolate, less than 2 in. long, acute, somewhat 

 undulate: fls. probably white, fragrant, solitary on the 

 ends of branches; calyx 10-parted, the lobes setaceous; 

 corolla-tube to 1 Yi in. long, the limb of several or many 

 ovate-elliptic or linear-oblong acute lobes. S. Afr. 



cc. Calyx pubescent or pilose. 

 D. Teeth of calyx subulate. 



5. Sambac, Soland. ARABIAN JASMINE. Climbing, 

 the angular branchlets pubescent : Ivs. opposite or in 3's 

 (the ternate-lvd. specimens giving rise to the name J. 

 trifoliatum, Hort.), firm in texture, shining, nearly or 



quite glabrous, the petiole short and abruptly curved 

 upward, elliptic-ovate or broad-ovate, either promi- 

 nently acute or completely rounded on the end, entire, 

 prominently veined: clusters 3-12-fld.; calyx-lobes 

 linear and prominent, hirsute on the edges (sometimes 

 almost glabrous); corolla-tube J^in. long; lobes oblong 

 or orbicular. India. B.R. 1. Much cult, in the tropics. 

 Fls. white, but turning purple as they die. A full double 

 button-fld. group is in cult., one form of which is the 

 Grand Duke of Tuscany (or Grand Duke) . The double 

 form is shown in B.M. 1785. This double form some- 

 times passes as J. trifoliatum. J. Sambac is a perpetual 

 bloomer, particularly in frostless countries, where it 

 can stand in the open. 



6. undulatum, Ker. Climbing, with hairy branches, 

 slender: lys. opposite, short-petioled, rather small 

 (about 2 in. long), ovate-lanceolate and acuminate, 

 somewhat pubescent beneath, somewhat undulate: fls. 

 6-10, in terminal cymes, white, long-tubed ; calyx-teeth 

 short; corolla-tube %in. long, and slender; lobes half or 

 less as long, acute. India. B.R. 436. Lvs. sometimes 

 ternate. Little known in cult, in this country. 



7. pubescens, Willd. (J. hirsutum, Willd. J. multi- 

 florum, Andr.). Climbing, rusty-hairy: Ivs. opposite, 

 very short-petioled, rather thick, ovate-acute: calyx- 

 teeth usually %in. long (nearly or quite twice as long 

 as in J. undulatum), with spreading yellow hairs: fls. 

 white, much like those of J. undulatum, the lobes 

 broad; often half-double. India. B.M. 1991. B.R. 15. 

 J.H. III. 43:322. Will stand some frost. Said to be 

 a good dwarf glasshouse subject. 



8. gracillimum, Hook. f. Climbing or scrambling, 

 soft-pubescent or hairy: Ivs. opposite, very short- 

 petioled, ovate-lanceolate, acuminate, the base cor- 

 date or truncate, bright green above and pubescent 

 beneath, 1^ in. or less long: fls. white, in very large, 

 dense hanging heads, an inch or more across, fragrant; 

 calyx-teeth long and awl-like, half as long as the slen- 

 der corolla-tube; corolla-lobes many (usually about 9), 

 acute. N.Borneo. G.C. II. 15:9. B.M. 6559. J.H. 

 111.52:281. G.Z. 26, p. 97. G. 4:471; 7:233. F.S.R. 

 3, p. 15. Long, lithe branches spring from near the 

 ground and bear heavy clusters at their ends. Hand- 

 some florif erous winter bloomer. Nearly hardy in eastern 

 part of N. C. 



DD. Teeth of calyx linear. 



9. nitidum, Skan. Slender-branched, somewhat 

 pubescent, 'half -twining: Ivs. opposite, shining, 2-3 in. 

 long, elliptic-lanceolate, short-acuminate, the base 

 somewhat cuneate, green above and pale beneath, 

 lightly pilose along the rib, primary veins 3, the petiole 

 less than %in. long and very pilose: fls. white, in small 

 cymes, very fragrant, the pedicels about J^in. long; 

 calyx pilose, the teeth linear and recurved and about 

 K m - long; corolla-tube narrow, Min. long; lobes of 

 corolla 9-12, linear-lanceolate, spreading, 1 Yi in. broad. 

 Admiralty Isls. (Bismarck Archipelago). R.B. 32, p. 

 182. R.H. 1907, pp. 110, 111. J.H. III. 60:237. Gn. 

 63, p. 61. A.F. 15:1237. An excellent warmhouse 

 climber. 



10. Maingayi, Clarke. Scandent shrub with pilose 

 branches: Ivs. opposite, long-petioled, elliptic-lanceo- 

 late, 5 in. long, glabrous, acute at apex and rhomboid at 

 base, coriaceous, the nerves 6-8 pairs and conspicuous 

 and oblique and not inarched: fls. white, star-shaped, 

 fragrant, in dense pubescent panicled cymes, on very 

 short pedicels; calyx-tube Hin. long, campanulate, 

 the teeth %m. 9 r l ess l n g> linear; corolla-tube %-l in. 

 long, the elliptic lobes acute, the limb 1^ in. diam. 

 Penang (India). B.M. 7823. Named for Dr. A. C. 

 Maingay, the discoverer. 



BB. Fls. pink or red. 



11. Beesianum, Forrest & Diels. Shrub, 1-3 ft.: Ivs. 

 simple and small, short-petioled, ovate or lanceolate, 



