554 



EUCALYPTUS 



EUCALYPTUS 



ate, from a broadly conical base : f r. about 4 lines in 

 diameter; rim thick. F.v.M. Eucal. 3: 7. -Timber suit- 

 able for floor boards, 

 railroad ties, telegraph 

 poles, and wood bricks 

 for street paving. 



785. Eucalyptus 

 Globulus. 



786. Eucalyptus 



Globulus. 



Showing spray of ma- 

 ture foliage (X%) 

 and two leaves of 

 sucker foliage. 



31. acmenioides, Schau. (E. tridntha, Linn. E. pilu- 

 laris, var. acmenioides, Benth.). WHITE MAHOGANY 

 GUM. Tall tree : bark of trunk persistent below, fibrous : 

 peduncles not much compressed, slender: lid hemi- 

 spherical, pointed at the summit: fruit not exceeding 3 

 lines in diameter; rim thin. F.v.M. Eucal. 10:1. Timber 

 heavy, strong and durable; good for palings, rails, floor 

 boards, etc. 



CO. Lvs. of equal color on both sides. 



D. Mostly opposite Ivs., not connate (except sometimes 



in No. 32, E. Risdoni); margin entire: fruit 

 rarely exceeding % in. in diameter, truncate- 

 ovate. 



32. Risdoni, Hook. DROOPING GUM. Small or medium 

 sized tree: bark deciduous, smooth: branches usually 

 pendulous, bark brown or ashy white: Ivs. acute, ovate: 

 lid hemispherical, obtuse: anthers kidney-shaped, open- 

 ing by divergent longitudinal slits. Closely related to 



E. amygdalina. . 



DD. Mostly scattered Ivs.: fls. and fruits sessile or on 

 short pedicels. 



E. Lid much broader than the calyx-tube. 



33. gomphocephala, DC. TOOABT TREE. Tree, 120 ft. 

 or less high: bark persistent, rough but not stringy, 

 rather 'dark on old trunks, smooth and grayish on 

 younger trees and branches: Ivs. thick, narrowly acumi- 

 nate, pale green: peduncles broadly flattened ; pedicels 

 wanting: lid almost hemispherical : fr. large, top-shaped; 

 border broad, convex. Nov. F.v. M. Eucal. 7:4. A very 

 distinct species, easily distinguishable by the broad 

 lid. Timber tough, heavy and rigid, texture close, 

 grain twisted, shrinks but little and does not split while 

 seasoning ; suitable for large scantlings where great 

 strength is needed, also in ship-building and for bridge 

 supports. One of the strongest woods known. 



BE. Lid not or only slightly broader than the calyx-tube, 



F. Calyx-tube and lid warty; anthers larger than broad, 



opening by nearly parallel longitudinal slits. 



34. Gldbulus, Labill. BLUE GUM. Figs. 781, 785, 786. 

 Tree, 300 ft. or less high: bark grayish or bluish white, 

 smooth except at the base of the trunk: Ivs. lanceolate, 

 thick: calyx-tube and lid covered with bluish white wax: 

 fr. large, angular. Dec.-Feb. F.v.M. Eucal. 0:2. G.C. II. 

 15:601; III. 2:784; 10:737. Very attractive to bees, but 

 the nectar has a strong and unpleasant odor. In Cali- 

 fornia more extensively planted than any other Gum, 

 and readily spreading by voluntary seedlings. Wil] 

 stand protracted drought without irrigation in a region 

 of only 8 or 10 inches annual rainfall (Franceschi). The 

 most rapid-growing species. Timber used in Australia 

 by ship-builders for planking and keels ; also for fence 

 rails, telegraph poles, railroad ties, shafts and spokes. 

 It has been recommended for wine casks. Will tolerate 

 19 F. Fig. 785 shows the stamens (5) and the structure 

 of the bud. Nos. 1-4 are K nat. size; 5 is on a larger 

 scale. No. 4 is a section of a bud. 



35. alpina, Lindl. Shrub, 12ft. high: Ivs. inequilater- 

 ally half -ovate, blunt, acute on young shoots, leathery: 

 fls. sessile in the leaf axils, solitary or few: fr. large, 8- 

 lines wide, almost hemispherical, not angular. Sept.- 

 Nov. F.v.M. Eucal. 2:1. A very rare and interesting- 

 alpine species, possibly suitable for street planting. 



FF. Calyx-tube and lid smooth or rough, but not warty: 

 Ivs. much exceeding 1 in. in length. 



G. Stamens not inflexed in the bud (see also No. 51, 



tereticornis ) : peduncles broadly flattened: calyv 

 lid long, cylindrical, obtuse: anthers ellipsoid, 

 opening by parallel longitudinal slits. 



36. Lehmanni, Preiss. Tall shrub or small tree: bark 

 coming off in irregular sheets, roughish and reddish: 

 fls. greenish yellow; calyx lid often 1% in. long: ovary 

 convex at the top : f r. half immersed in the receptacle, 

 about Kin. in diameter; valves connivent into a cone 

 tapering into the persistent base of the style. July- 

 Sept. Valuable ornamental tree. 



37. cornuta, Labill. YATE TREE. Large tree : calyx 

 lid 1-1/4 in. long: filaments yellow: ovary almost on a 

 level with the calyx rim, the top flat or at length slightly 

 convex; style thickened at the base: fr. free (not im 

 mersed in the receptacle). July-Sept. F.v. M. Eucal 

 9:1. Closely related to the preceding. Used success 

 fully as a roadside tree in southern California; adapted 

 to the lemon belt, and tolerating alkaline and saline soils 

 (Franceschi). Prefers a somewhat humid soil. Timber 

 hard, tough and elastic, suitable for shafts- and frame: 



of carts, and considered equa 

 to ordinary ash wood. B. M 



38. occidentalis, Endlich 

 FLAT-TOPPED YATE. Fig. 787 

 Tall tree : bark deciduous 

 mostly smooth : Ivs. narrow 

 lanceolate : calyx lid %-% in 

 long; filaments yellowish: fruit 

 valves only half exserted, awl 

 shaped, free. F. v. M. Eucal. 

 6:5. Individuals show great 

 diversity in time of flowering, 

 so that specimens may be found 

 in blossom at any time between August and April. 



39. platypus, Hook. (E. obcordata, Turcz.). Tall 

 shrub, 30 ft. or less high: bark smooth, grayish: Ivs. 

 petiolate, leathery, broad-obovate, blunt, shining: pedun- 

 cles flattened and winged, bent downwards: fls. sessile,, 

 dull red or yellowish white, not conspicuous : calyx- 

 tube prominently angular, much broader than the conic- 

 cylindrical lid : fr. truncate-ovate, very angular, border 

 compressed; flowering almost continuously, but never 

 much at a time. F.v. M. Eucal. 7:6. Hook. Icon. 849. 



GG. Stamens inflexed in the bud: fruits from % to 1 in. 

 in diameter. 



40. megacarpa, F.v.M. Tree, 100 ft. or less high: 

 bark deciduous, smooth, grayish white : peduncles 

 sharply 2-edged and dilated upwards: fls. 1-2 or 3, ses- 



787. Fruits and buds of 

 E. occidentalis (X%). 



