16 



SEEDS AKD PLANTS IMPOETED. 



38709 to 38731— Continned- 



38713. ErcALYPTUS cxadocaltx F. MoelL Sngar gum. 

 {Eucalyptus ccnrvnocalyx F. Muell.) 



Tbis tree attains a fair size and is commonly i^ymmetrical aih. 

 erect. Its growth is quite rapid from an early 'age. The osnal 

 hei^t ranges from 50 to 100 feet, and in Australia the trunk is said 

 to often attain a diameter of 5 or 6 feet. As a rule the trunk V*- 

 straight, with only a sligbt taper. The bark is left smooth by th»r 

 continuous flaking off of the patches or strips. The bark of the main 

 stem is usnaUy a de^ cream color, that of the branches dai^er 

 before shedding, and of the young twigs quite red. This Eucalyptus 

 furnishes a timbo' that is Tery durable as railway ties, as posts, and 

 for other underground situations. The wood warps \ery littie iu 

 drying and when dry is Tery hard. It is also useful for the nave> 

 and felloes of wheels. (McClatchie, p. 57, 58.) 



38714. FrcALYPnrs toii^aijs Labill. Manna gam. 

 Both in Australia and in the Southwest the indiTiduals of ihi>' 



species make rapid growth and commonly become trees of large sixt. 

 Those growing in the Southwest giTe promise of eventually attaining 

 a h«g^t of 300 feet and a trunk diameter of 15 to 30 feet. The surface 

 of tbe bark Taries considerably in appearance. That of the trunk and 

 main branches is oonunonly persistent, but from some trees long, 

 slender strips are shed, leaTing the trunk smooth and of a greenish 

 or reddish creamy color. The persistent bark is brownish in color, 

 furrowed and rougb. This bark has the peculiar cliaract»1stic oi 

 exuding a honeylike substance, called * lerp * by the natives, but bet- 

 ter known as * manna,* when tiie bark is punctured or wounded by 

 insectSw This Huealyptus grows imda* quite a variety of climatic 

 conditions. In tlie Southwest it thrives near the coast, on dry mesas, 

 in the elevated valleys of'the interior, and in the hot valleys of 

 much of the des^ region. The timber of this tree is less valuable 

 than most of the eucalyiits. It is not durable under ground and does 

 not make good fuel. In Australia it is used for shingles and for 

 rougii building material. The tree can be grown for a forest cover, 

 for windbreaks, for furf, and for shade in many localities where 

 ^)ecies producing a better timber will not grow. {McClatchie, p. 



38715. ErcALYPTUs 6LOB1II.t:s LabilL ' Blue gnm 

 This i^tecies is tiie best known of tiie eucalypts and in many 



respects the best known tree in all the world. It is the third tallest 

 of the ;^)ecies of Kucalj-ptus, the usual height in Australia being 20iJ 

 to 300 feet In California, where trees can be found 30 or more 

 years old, many have attained the height of 150 feet, and a diameto* 

 of 3 to 6 feet during these years. This rranarkable tree has the 

 power of adapting itself to a variety of climatic conditions. It thrives 

 both in moist, warm r^ons. and in quite hot, dry ones. It makes 

 a good growth both in low lands and in dry, stony uplands. This 

 species is the most generally useful of all the eucalypts. The timber 

 of this tree is of a rather pale color, is hard, heavy, and very strong 

 and durable. It is fairly straight grained and splits easUy. In 

 Australia it is used for shipbuilding, for carriage making, and in 

 the manufacture of agricultural implements. It is also used in 



