EUCALYPTUS 



EUCALYPTUS 



553 



jj. Cahjx-tubc and lid smooth. 



19. mellioddra, Cunn. Honey-scented Gum. Spread- 

 ing tree, 1-0 ft. hitch: bark more or less persistent be- 

 low, roughish, brownish gray without, yellowish within: 

 fls. small: lid conic-hemispherical: outer stamens ster- 

 ile ; anthers minute, truncated, opening by terminal 

 pores : fr. truncate-globular, not exceeding % in. in 

 diam., mostly 4-celled. Feb.-Apr. — F.v.M. Eucal. 2:5. 

 — Timber used by wheelwrights and ship-builders ; 

 makes excellent fuel : fls. particularly rich in nectar, 

 and much sought by bees. 



AA. Fruit-valves either quite exserted or the points 

 reaching the level of the rim. {Fruit must be 

 fully mature in order to render this point de- 

 terminable. ) 

 B. Fls. generally panic led : anthers renate-cordate, 

 opening by longitudinal slits: Ivs, of equal color 

 on both sides. 



c. jf/cs. opposite, more or less ovate. 



20. melanophldia. F. v. M. Silver-leaved Ironbark. 

 Small tree: bark persistent, deeply furrowed, blackish: 

 Ivs. glaucous or mealy white, sessile, from cordate- 

 ovate or orbicular to ovate -lanceolate, obtuse or acute: 

 peduncles .S- to 8-flowered : anthers very small and 

 globular; cells parallel and distinct; fr. truncate -globu- 

 lar, 2 or 3 lines long. 



cc. Lvs. scattered, lanceolate. 



21. siderophldia. Benth. Large-leaved Ironbark. 

 Tree, 150 ft. high : bark wholly persistent, deeply and 

 somewhat anastomosingly furrowed; furrows yellowish 

 or dark brown: lvs. elongated: lid conical, very acute, 

 about 3 lines long: outer filaments straight in bud; an- 

 thers very minute, roundish ; stigma not dilated. 

 October. P. v. M. Eucal. ■4:8.— Timber very strong, hard 

 and durable; used for railroad ties, wharf piles, spokes 

 and tool-handles. 



22. drepanophylla, F.v.M. Low, stunted tree : bark 

 ribbed, dark gray: lvs. thin, often over C in. long; 

 veins line, numerous, parallel and very diverging: um- 

 bels 3- to 6-flowered: fls. large; calyx-lid about as long 

 as the tube (not exceeding 2 lines long): fr. 3 to 4 

 lines in diameter; valves level with or hardly project- 

 ing beyond the rim. Said to be near F. crebra, differing 

 mainly in the large flowers and in the larger, harder 

 and more globular fruit. 



Var. leptophl^ba, Luehm. (E. leptophleba, F.v.M.), 

 is said to be chiefly distinguished by the lvs. being 

 thicker aud the veins more oblique. Timber strong, 

 hard and very durable ; used for bridges, mine props 

 and fence posts. 



23. crdbra, F.v.M. Narrow-leaved Ironbark. Tall 

 tree : bark persistent throughout, dark, almost blackish, 

 ridged and deeply furrowed, solid: lvs. narrow, linear- 

 lanceolate, thin : lid semiovate-conical, not exceeding 

 2 lines long: filaments inflexed in bud; stigma dilated: 

 fruit-valves level with or hardly projecting beyond the 

 rim, not exceeding 2 lines in diameter. F. v. M. Eucal. 

 5:3. — Timber heavy, hard, elastic and durable; used for 

 railroad ties, piles, fence posts, and in the construction 

 of bridges and wagons; also suitable for splitting into 

 palings. 



BE. Fls. inostly in simple axillary \im.bels: fruits not 

 exceeding 1 in. in diam. 

 c. Lvs. paler beneath. 

 D. Calyptra lid broader than the calyx-tube. 

 2t. robuBta, Smith. Swamp-mahogany Gum. Fig. 

 784. Handsome, sjTnmetrically 

 branching tree, 100 ft. high : 

 bark of trunk persistent, 

 rough, dark brown; of the 

 branches reddish : lvs. large, 

 oval -lanceolate, long-pointed, dark 

 green, coriaceous ; the veins al- 

 most horizontally spreading : 

 peduncles broadly flattened: fls. 

 large, creamy white; calyx pale ; 

 lid hemispherical below, cylin- 

 dric-conical pointed above ; an- 

 thers oblong - oval, opening by 784. Fruit and buds of 

 parallel longitudinal slits. Fine E. robusta iX%). 



avenue tree ; profuse bloomer, especially valuable for 

 bees. Dec. -Feb. F.v.M. Eucal. 7:8. — Timber remark- 

 ably durable ; used for ship-building, wheelwrights' 

 work, mallets, etc. : seems to thrive well in low, sour, 

 swampy ground near the seacoast. 



DD. Calyptra lid not broader than the calyx-tube. 

 e. Fruit % in- or more in diameter. 



25. marginita.Smith. Jarrah. Talltree: barkpersist- 

 trut, somewhat fibrous: leaf-veins spreading: lid conical: 

 stamens all fertile, the outer not inflexed in the bud; 

 anthers cordate-kidney-shaped, opening by divergent 

 longitudinal slits: fr. -valves very short, scarcely or not 

 at all exserted. Apl., May. F. v. M. Eucal. 7:5. -Valu- 

 able hardwood tree, reqxiiring a warm climate : timber 

 not attacked by teredo ; used for wharf piles, under- 

 ground work, telegraph poles, railroad ties, floorings, 

 rafters, shingles and furniture ; it is easily worked, 

 makes a flne finish, takes a good polish ; used in Eng- 

 land for street paving. 



EE. Fruit under V^ in. in diameter. 



p. Length of lid usually twice or thrice that of the 

 calyx tube. 



2G. resiiiifera, Smith. Kino Eucalypt. Tall tree: 

 bark of trunk persistent, rough, of branches deciduous: 

 leaf-veins pinnately spreading : oil-dots pellucid, more 

 or less obliterated: lid conical : stamens all fertile, in- 

 flexed in the bud ; anthers longer than broad, opening 

 by parallel longitudinal slits. F.v.M. Eucal. 1:9.— 

 Timber valued for its strength and durability; particu- 

 larly good for fuel; used in Sydney for street paving. 



pp. Length of lid shorter than or equaling that of the 



calyx-tube. 

 Q. Foliage 7nuch paler beneath: lateral veins numer- 

 ous, very spreading. 



27. saliva. Smith. Talltree: bark gray and smooth: 

 leaf -veins feathery-spreading : oil-dots numerous but 

 much concealed: peduncles broadly compressed; pedi- 

 cels very "fehort or none : lid hemispherical, short 

 pointed: stamens all fertile; anthers longer than broad, 

 opening by parallel longitudinal slits. Nov. F.v.M. 

 Eucal. 2:8. — Said to be hardier than F. Globulus ; pre- 

 fers rich, alluvial soil. 



28. microcdrys, F.v.M. Tallow-wood Gitm. Talltree: 

 bark persistent throughout, wrinkled: lvs. thin, of al- 

 most papery consistence, copiously dotted with pellucid 

 oil-glands, paler and opaque beneath; veins spreading: 

 pedicels elongated, club-shaped, almost continuous with 

 the calyx tube : lid depressed-hemispherical, hardly 

 jointed : anthers very minute, almost heart-shaped, 

 opening by divergent slits. F.v.M. Eucal. 2:6. — Timber 

 hard , durable , easily worked ; used preferably for 

 wood bricks; also for railroad ties, knees and breast- 

 hooks in ship-building, and telegraph poles. 



GG. Foliage slightly paler beneath, the lateral veins not 

 very close and moderately spreading. 



H. Fruit broadest at the orifice: fertile seeds mitch 

 larger than the sterile ones: stamens all fertile: 

 anthers longer than broad, opening by parallel 

 longitudinal slits. 



29. punct&ta, DC. Leather-jacket. Hickory Gum. 



Beautiful spreading tree, 100 ft. or more high: bark 

 smooth and dark, thick, most of the outer deciduous: 

 lvs. thin ; veins divergently spreading : peduncles 

 broad, strongly compressed: pedicels angular, thick: 

 lid bluntly conical. F.v.M. Eucal. 6:7. — Timber hard, 

 tough and very durable, suitable for fence posts, rail- 

 road ties, wheelwrights' and ship-builders' work. 



HH. Fruit contracted at the orifice: fertile seeds not 

 much larger than the sterile ones: stamens all 

 fertile : anthers kidrxey -shaped, opening by di- 

 vergent longitudinal slits. 



30. pilul^ris, Smith. Blackbutt. Tree, 300 ft. or less 

 high: bark of trunk persistent, blackish gray outside, 

 somewhat fibrous and brownish inside; of branches 

 smooth, gray or whitish: lvs. rather less shining below 

 than above: peduncles strongly compressed: lid attenu- 



