262 



DESCRIPTION. 



LXVIII. E. uncinata Turcz. 



In Butt. Soc. Nat. Mosc, XXII, Part II, p. 23 (1849). 



The original Latin description will be found at Part XIV, p. 143, of the present work. 

 It may be translated into English as follows : — 



Stem, branches and branchlets terete; bark brown; leaves alternate, petiolate, linear-lanceolate, 

 glancesccnt, covered with sub-pellucid dots, m n trrowed at the base, produced into an uncinate 



point at the apex: heads mahy-flowi dunculate, the lower ones somewhat remote, the upper ones 



collected into a dense raceme; peduncles about the same length as the petioles; pedicels almost absent; 

 calyx-tube turbine ! or scarcely angled; operculum conical, rather obtuse, about the same length 



as the calyx-tube, stamens exsert (white). Buds small, the size of those of E. rabusta, leaves 2-3 inches 

 long, not exceeding 21 lines in greatest breadth. 



Then Bentham described it : — 



A tall shrub, with a smooth red or ash-grey bark, coming off in coriaceous plates (Oldfield). 



Leaves narrow-lanceolate or linear, usually under 3 inches, thick, the very fine veins scarcely visible, 

 distant and rather oblique, but not so much so as in E. gracilis, always conspicuously black-dotted, especially 

 underneath. 



IVdnneh's axillarj rather short, terete or scarcely flattened, bearing each an umbel or head of 

 about 6 to 8 small flowers. Buds ovoid or oblong. Calyx-tube about 11 lines long, sessile or tapering into 

 a short pedicel. Operculum obtusely conical or acuminate, as long as or rather longer than the calyx-tube. 

 Stamens about 2 lines long, all perfect, the filaments slender and inflected, with an acute angle, as in 

 E. carynooalyi and E. decurva, anthers very small, nearly globular, with contiguous cells opening in terminal 

 pores. 



Ovary ped. Capsule globular-truncate or pyriform, 2 to nearly 3 lines diameter, contracted 



at the orifice, the rim concave '<r at length nearly flat, the capsule sunk, but the valves often acuminate by 

 the split lei-.' pf the style, and then the subulate tips protruding. (T3. Fl. Ill, 21G.) 



The buds are sessile on a compressed common peduncle ; operculum sometimes 

 very short, sometimes rostrate. Calyx-tube somewhat angular. Fruits barrel-shaped, 

 sessile. 



1. The var. latifolia Benth., based on Drummond's No. 70. 



At Part XIV, p. 144, I have already thrown doubt on the validity of this variety, 

 and I now emphasise the doubt, and am of opinion that it should be dropped. 



It affords a case of " The flowering of Eucalyptus when in the juvenile stage," 

 referred to in Pari XldX, p. 217. It belongs to that branch of the subject (see 

 p. 274) in which in a mature plant there is juvenile (reversionary) foliage which flowers, 

 and which I have called Diels's Law. In other words, the supposed var. latifolia arises 



