EUCALYPTUS ABERGIANA. 



p. V. M., fragnienta phytographias AuatraJias si. 142 (1878). ,. -- 



Finally very tall ; leaves scattered, of thick consistence, oval- or elongated-lanceolar, hardly, 

 inequilateral, shining above, opaque beneath ; the lateral vehis copious subtle and very spreading, 

 the longitudinal vein almost contiguous to the margin of the leaves or but slightly removed from 

 the edge ; panicles terminal ; flowerstalks thick, almost cylindrical, the ultimates bearing 2-6 

 flowers on exceedingly short or without stalklets; calyces pale, their tube truncate-ovate nearly 

 twice as long as the almost hemispheric lid, not angular ; stamens all or nearly all fertile, 

 itrflesed before expansion ; anthers oval, with nearly longitudinal dehiscence ; stigma very slightly 

 dilated ; fruits large, oval-urnshaped, smooth, with a thin margin and with four enclosed at first 

 horizontal valves ; fertile seeds expanding from their summit into a long membrane, much longer 

 than the slender sterile seeds. 



On the mountains near Rockingham-Bay ; Dallachy. 



A lofty tree, with persistent bark and very expanding branches. Heart-wood very hard, 

 reddish. Branchlets in some instances slender and somewhat angular, in other cases thick and 

 cylindrical. Leafstalks f-lj inches long. Leaves measuring 2^-4 inches in length or occasionally 

 longer, rarely shortened to an almost oval form, 1-2 inches broad, often very gradually narrowed 

 upwards, blunt at the base. Panicle almost corymbous ; its ultimate flowerstalks generally about 

 1 inch long, as well as the branchlets pale, not shtaing. The unopened calyces eggshaped, their 

 very blunt and rather thick lid rather separating by a horizontal rupture than by a well defined 

 suture of circumcision ; the tube in flowering state about i an inch long, sometimes subsequently 

 slightly turbinate. A few of the outer stamens occasionally devoid of anthers ; filaments according 

 to the note of the collector whitish in a fresh state, but reddish-yellow when dry ; the longer 

 filaments 4-5 lines long. Anthers hardly J a line long ; their cells separated by a broad 

 connective. Style half included within the calyx, exceeded by the stamens. Fruit 1 inch long or 

 somewhat longer, not angular ; the valves deltoid-shaped, hardly |- inch long. Fertile seeds very 

 compressed, terminated by a semioval membrane, giving a length of about ^ inch for the whole 

 seed including the appendage. 



This stately species is dedicated to a Swedish physician, Ernest Aberg, M.D., Ch.M., who 

 subjected in the La Plata States many Eucalypts to test-culture, and published a meritorious 

 work on the importance of these trees for wood-supply in the Argentine Republic " Irrigacion y 

 Eucalyptus," Buenos-Aires, 1874. 



E. Abergiana approaches in its affinity to E. ptychocarpa (P. M., in the Journal of the 

 Proceedings of the Linnean Society iii. 90), with which it agrees in the size and shape of its fruit, 

 but the latter is in no way lined with prominent longitudinal ridges, nor are the flowers provided 

 with conspicuous stalklets. — E. miniata differs in narrower leaves opaque on both sides, axillary 

 solitary flowerstalks, longitudinally ang-ular calyces, longer anthers, larger fruits and seeds 

 without any appendage. — E. Watsoniana (F. M., fragm. phytogr. Austr. s. 98) again recedes in 

 narrower leaves equally colored on either side, calyces with a varnish-lustre and fixed to distinct 

 stalklets, a widely dilated lid, which overreaches the orifice of the calyx-tube, longer stamens, 

 fraits wider at the summit with a furrowed broader rim and unappendiculated seeds. — E. corym- 

 bosa, which likewise occurs as far north as Rockingham-Bay, is separated by its narrower leaves 

 acute at the base, angular and more slender flowerstalks, smaller calyces provided with stalklets 

 and not pale-colored, a thinner and not obtuse lid, which separates by a distinct suture of the 



