EUCALYPTUS 



EUCALYPTUS 



1153 



ridges broader than in other ironbarks: Ivs. 4-7 in. 

 long: lid beak-like, very acute, J^-Kin- long; stamens 

 about 3 lines long; anthers minute, globular, opening 

 by oblong slits: fr. obovoid, truncate, about J4 m - across, 

 the valves slightly protruding. Oct., Nov. F.v.M. 

 Eucal. 4:8. Maiden, Grit. Rev. Eucal. 47 (figs. 19-33). 

 Wood heavy, strong, and durable, useful for wagon 

 work, tool-handles, building, posts, poles, and the like. 

 Fls. provide honey for bees. Tree of rapid growth and 

 resistant to extremes of temperature: grown in the San 

 Joaquin Valley. 



10. paniculata, Smith. WHITE IRONBARK. RED 

 IRONBARK. Tall or medium-sized tree: bark hard, 

 persistent, deeply furrowed, of a grayish brown color: 

 Ivs. lanceolate, acuminate, 3-5 in. long: fls. in panicles or 

 sometimes in axillary umbels; lid variable; stamens 

 2-4 lines long, the outer ones steri'e; stigma dilated: 

 fr. truncate-ovate, pedicelled, 2-4 lines wide, with thin 

 rim. Summer. F.v.M. Eucal. 5:8. Maiden, Grit. Rev. 

 Eucal. 57 (figs. 8-21). Wood usually very pale, but 

 variable; the hardest of ironbarks; "cuts almost like 

 horn:" valuable for railroad-ties, fencing, and build- 

 ing purposes. Does not endure heat and drought: 

 much prized in Austral., but trees in Calif, are not 

 promising. 



11. Raveretiana, F. v. M. Tall tree with thin angular 

 branchlets: bark deciduous, leaving the branches 

 smooth and gray, but often persistent on the trunk: 

 Ivs. lanceolate, opaque, 3-5 in. long: fls. exceedingly 

 small, white, short-stalked; lid slenderly conic, under 

 2 lines long; stamens not 2 lines long; anthers reniform, 

 opening by longitudinal slits: fr. little over 1 line wide, 

 low-cup-shaped, the protruding valves forming a 

 hemispheric summit. F.v.M. Eucal. 1:8. Maiden, 

 Grit. Rev. Eucal. 53 (figs. 1-3). 



12. microtheca, F. v. M. Tree, becoming 80 ft. 

 high: bark rough, gray, persistent, or the outer layers 

 deciduous, leaving the trunk smooth: Ivs. narrowly 

 lanceolate, 4-6 in. long: lid broad-conic; stamens very- 

 short; anthers minute, roundish, opening by longi- 

 tudinal slits: fr. scarcely J^in. wide; valves fully half- 

 protruding. F.v.M. Eucal. 10:6. Maiden, Grit. Rev. 

 Eucal. 52 (figs. 16-22). Not yet fully tested in Amer.: 

 endures frost and heat : recommended as a forest cover 

 for the hot dry region of the S. W.: the roots yield 

 water to natives and travelers on the Australian deserts. 

 Wood beautifully colored but perhaps too hard for 

 cabinet work. 



13. crebra, F. v. M. NARROW-LEAVED IRONBARK. 

 Small to large tree, with slender drooping branchlets: 

 bark persistent throughout, hard, dark, ridged and 

 deeply furrowed: Ivs. pale, narrow, linear-lanceolate; 

 lateral veins fine, nearly parallel, widely diverging 

 from the midrib : lid conical or nearly hemispheric, not 

 over 2 lines long; stamens 1 or 2 lines long, inflexed in 

 bud; anthers globular, opening by longitudinal slits: 

 fr. obovoid-truncate, not over 2 lines wide, the tips of 

 the valves not or scarcely exserted. F.v.M. Eucal. 

 5:3. Maiden, Grit. Rev. Eucal. 53 (figs. 4-9). A 

 rapidly growing frost-resistant tree of picturesque 

 habit: endures minimum temperatures of 18-20 and 

 maximum temperatures of 110-118 (McClatchie), 

 not very resistant to alkali (Loughridge). Grown in 

 Calif, for its hard durable wood, of a reddish color. 

 Bark sometimes described as grayish and deciduous. 



14. leptophleba, F. v. M. Characters as in E. crebra, 

 but fls. somewhat larger and fr. 3 or 4 lines wide: Ivs. 

 of a silky sheen. This has been classed as a var. of E. 

 drepanophylla, F.v.M., but the two are now known to be 

 identical and E. leptophleba is the older name. 



15. tricolor, A. Cunn. (E. largiflorens, F. v. M.). 

 BLACK Box. Shrub or small tree, with drooping 

 branches: bark persistent, rough and hard: Ivs. lanceo- 

 late, 5 in. or less long; lateral veins at an acute angle 



to midrib: lid double, the inner one hemispheric; sta- 

 mens 1 or 2 lines long; anthers opening by lateral pores: 

 fr. truncate-ovate, about 2 lines wide, the valves in- 

 closed but not distant from the thin rim. F.v.M. Eucal. 

 5:7. Maiden, Grit. Rev. Eucal. 49 (figs. 5-13), 51 

 (figs. 9-19). Timber hard, tough, and durable, rather 



1426. Eucalyptus globulus. Shoots on a young plant. ( X H) No. 18. 



easily worked: suitable for ties, piles, shafts, poles, 

 cogs, and the like. 



16. hemiphldia, F. v. M. AUSTRALIAN GRAY Box. 

 Tree, 90 ft. or less high: bark of trunk persistent, solid, 

 grayish and somewhat wrinkled ; of branches deciduous 

 in flakes or long strips: Ivs. lanceolate-falcate to ovate- 

 lanceolate, 3-5 in. long, thick and rigid, often ashy 

 gray; lateral veins distant, diverging at a very acute 

 angle: lid conical; stamens pale, about 2 lines long; 

 anthers globular, opening by lateral pores: fr. ovoid- 

 oblong, truncate and slightly contracted at orifice, 

 about 3 lines wide. F.v.M. Eucal. 5:5. Maiden, Grit. 

 Rev. Eucal. 50 (figs. 1-6). Useful as a shade tree 

 because of its dense foliage; also for fuel and as pastur- 

 age for bees. Wood hard, tough, and durable. 



Var. albens, F. v. M. (E. dlbens, Miq.). WHITE 

 Box. Bark dull green, persistent: Ivs. glaucous or 

 white-mealy: buds chalk-white: fr. larger. 



17. macrocarpa, Hook. Stout shrub, 6-15 ft., usually 

 white-mealy: Ivs. all opposite, sessile, cordate-ovate: 

 fls. orange-colored to crimson, very large, solitary; 

 calyx-tube smooth or obscurely ridged: lid conical, 

 longer than the tube; stamens about 1 in. long: 

 fr. depressed-hemispherical, 1K~3 in- across, with 

 raised rim and broad protruding valves. Hook. Icon. 

 405-407. B.M. 4333. F.v.M. Eucal. 8:4. Maiden, 

 Crit. Rev. Eucal. 77 (figs. 1-3). Desirable ornamen- 

 tal because of its glaucous foliage and brilliant bloom : 

 grown sparingly in S. Calif. 



18. g!6bulus, Labill. BLUE GUM. Figs. 1425-1427. 

 Tree, 300 ft. or less high: bark deciduous in long thin 

 strips or sheets, leaving the trunk smooth and grayish 

 or bluish white except at base: Ivs. lanceolate, thick, 

 often H-l ft. long; those on young shoots and seed- 

 lings opposite, sessile, broad, and white-mealy: fls. 

 solitary or 2 or 3 together, closely sessile or on a 

 short peduncle; calyx-tube and lid warty, covered 

 with bluish white wax; stamens above l /^m. long: 

 fr. angular, %-l in. across, the flat valves not pro- 



