1906 



LONICERA 



LONICERA 



i. Under side of Ivs. 

 sparingly pubes- 

 cent 28. minutiflora 



ii. Under side of Ivs. 



densely pubescent . 29. Morrowii 

 FF. Winter-buds rather large, 

 pointed, vrith long-ciliate 

 scales: ovary glandular. 

 G. Fls. whitish, often slightly 

 pinkish: Ivs. generally 

 ovate to obovate, acute 

 or abruptly acuminate, 

 glabrous or soft-pubes- 

 cent 30. Xylosteum 



GO. Fls. pale yellow changing 

 to deeper yellow: Ivs. 

 rhombic-ovate to ovate- 

 lanceolate, acuminate, 



pilose 31. chrysantha 



EE. Peduncles shorter than petioles. 

 F. Calyx with 5 acute teeth: Ivs. 



acuminate 32. Maackii 



FF. Calyx truncate, splitting, 

 scaripus: Ivs. obtuse or 



acutish 33. trichosantha 



BB. Habit climbing: branches hollow. 



C. Corolla less than 1 in. long, tube 



slightly ventricose; corolla dull raf.34. Henryi 

 cc. Corolla over 1 in. long, with slender 



tube. 



D. Bracts leafy, ovate; corolla 1 ]^2 

 in. long, white or purplish: Ivs. 

 more or less pubescent, half- 

 evergreen 35. japonica 



DD. Bracts subulate: Ivs. quite gla- 

 brous, evergreen. 



E. Length of corolla 3-4 in.: 

 color changing from white to 



yellow 36. longiflora 



EE. Length of corolla 5-7 in.: 

 color changing from yellow 



to orange-red 37. Hildebrandi- 



AA. Fls. in usually 6-fld. whorls at the end [ana 



of the branchlets: Ivs. below the infl. 

 connate (except in No. 58). 

 B. Tube of corolla 3 or more times longer 

 than limb; limb nearly equal or short 

 2-lipped. (See also No. 47.) 



c. Limb regular: Ivs. not ciiiate 38. sempervirens 



cc. Limb short, 2-lipped. 



D. Lvs. ciiiate 39. ciliosa 



DD. Lvs. not or slightly ciiiate 40. Brownii 



BB. Tube of corolla as long to twice as long 



as limb; limb deeply 2-lipped. 

 c. Corolla %-l, rarely to 1% in. long; 

 tube of corolla ventricose, or 

 slightly gibbous, pubescent inside 

 (except in No. 46). 

 D. Bractlets at least half as long as 

 ovary; corolla *4-%in. fang, 



with gibbous tube 41. hispidula 



DD. Bractlets one-third as long or 



shorter. 



E. Disk of connate Ivs. elliptic, 

 pointed at both ends, usually 

 concave. 



P. Lvs. ciiiate: branchlets pu- 

 bescent: corolla glandular 



outside 42. hir suta 



FF. Lvs. not ciiiate: branchlets 

 glabrous: corolla usually 

 glabrous outside. 

 G. Under side of Ivs. pubes- 

 cent 43. glaucescens 



GG. Undersideoflvs.glabrous.44.dioictL 

 EE. Disk suborbicular or oval, 

 rounded at the ends, nearly 

 flat. 



F. Style and tube inside pubes- 

 cent: disk usually with 

 dense whitish bloom above . 45. prolif era 

 FF. Style and tube inside gla- 

 brous: disk bright green ' 

 above or only slightly 

 bloomy 46. flava 



cc. Corolla l%-3 in. long; tube of 

 corolla slender, not ventricose, 

 glabrous inside (except in Nos. 47 

 and 51). 



D. Whorls of fls., at least the lower 



ones in the axils of connate Ivs. 



E. Tube of corolla 8 or 4 times as 



long as limb, stamens much 



shorter than limb 47. impleia 



EE. Tube of corolla not more than 



l}/2 times as long as limb; 



stamens about as long as 



limb. 



F. Bractlets minute or wanting: 



whorls of fls. only 1 or 2.... 48. Caprifolium 

 FF. Bractlets about half as long 



as ovaries: whorls several. . 49. americana 

 DD. Whorls of fls. in peduncled heads 



or spikes. 



E. Lvs. below the infl. connate. 

 F. Fls. in elongated spikes with 



remote whorls 50. Heckrottii 



FF. Fls. in dense heads. 



G. Corolla about 8 in. long: 

 head short - peduncled 



with 1 or 2 whorls 51. tragophylla 



GG. Corolla iy^-2 in. long: 



' heads long-peduncled, 



often in S's, with several 



whorls 52. etrusca 



EE. Lvs. all distinct: fls. in a dense 



head 53. Pericly- 



[menum 



Subgenus CHAM^CERASUS. 

 Section ISOXYLOSTEXJM. 



1. syringantha, Maxim. Upright slender-branched 

 shrub, glabrous: Ivs. elliptic to oblong, obtuse or acutish, 

 dull bluish green, J^-l in. long: peduncle Kin. long; 

 cupule shorter than ovaries; calyx-teeth lanceolate; 

 corolla tubular-funnelform, 3^in. long, pale rosy lilac, 

 fragrant; stamens and style included: fr. red. May, 

 June: fr. in Aug. W. China. B.M. 7989. R.H. 1907, p. 

 281. Var. W61fii, Rehd. Branches more spreading, 

 often procumbent: Ivs. narrower, usually acute: fls. 

 lilac-carmine. W. China. Very graceful shrub pro- 

 ducing its fragrant 

 fls. profusely. 



2. thibetica, Bureau 

 & Franch. (L. rupi- 

 cola var. thibetica, 

 Zabel). Fig. 2195. 

 Shrub, to 5 ft., with 

 wide-spreading slen- 

 der, often procum- 

 bent branches: Ivs. 

 oblong- lanceolate, 

 acute, rarely obtus- 

 ish, dark green and 

 glossy above, white- 

 tomentose beneath, 

 M-l/4 in. long: pe- 

 duncle to j^in. long, 

 cupule about half as 

 long as ovaries; co- 

 rolla tubular-funnel- 

 form, pale purple, 

 about J^in. long, 

 slightly tomentose 

 outside, fragrant; 

 stamens and style in- 

 cluded : fr. red. May, 

 June; fr. in Aug., 

 Sept. W. China. S. 

 T. S. 1:45. R.H. 

 1902, p. 449. A 

 dense much-branched 



2196. Fly honeysuckle. Lonicera shrub well suited for 

 canadensis. (XJi)No. 4. rocky slopes. 



