142 



intramarginal one well removed Erom the edge. Umbels capitate, axillary, on 

 flattened peduncles, bearing aboul seven flowers; pedicels from i' to 3 or 4 lines 

 long; tube of the calyx semi-ovate, rareh top-shaped; operculum hemispherical, 

 obtuse or acuminate. 



Fruit.— Hemispherical, rarely conical, on a short gfe| 



or long pedicel ; rim mostly thickened with '<# 'w 



a ring below the edge; a specimen from -Jr' 



Araluen has quite a flange ; valves exserted ; '<-? 



3 to 4 lines in diameter. 



The fruits tiit' characteristic; llicy somewhat resemble 

 E. resinifera or occasionally E. viminalis, but the rim 

 is more domed. 



Habitat. — Southern half of Dividing Range, New South 

 Wales, into Gippsland, Victoria. 



REMARKS. — Objections have been taken [vide Proc. Linn. Soc, New South Wales. iSqq, Part IV, p. 628) 

 to the specific rank of this species, and efforts made to show that it is identical with Baron Mueller's E. Stuartiana, 

 the " Apple " of Victoria. We contend that E, Stuartiana, F.v.M., does not appear to occur in this State, as Mueller's 

 description in the Eucalyptographia applies to the " Apple tree" of Victoria, which has a red, almost Stringy-bark 

 and a red-coloured timber. As stated by Mueller, " Argyle Apple" (E. cinerea, F.v.M ), is distinguished from E. 



Stuartiana only in foliage The bark of E. Stuartiana and E, cinerea, F.v.M., arc very much alike." 



Such statements can only apply tc the Victorian Eucalypt and the " Argyle Apple," as these characters do not apply 

 to E. Bridgesiana. Dr. Howitt, F.G.S., a co-worker with Mueller on the Eucalypts, and our who collected the original 

 E. Stuartiana material for him, holds that it was the " Victorian Apple " on which Mueller founded E. Stuartiana, and 

 this is substantiated by all the writings and herbarium material of the late Baron, and by those who, alone with 

 him, were familiar with the tree in the field at the time of the publication of his work on Eucalvpts. Dr. Howitt 

 was quite in accord with our classification of these two species — E. Stuartiana and E. Bridgesiana. The figure 

 (loo. cit.) somewhat resembles E. Bridgesiana, R.T.B., which species has been confounded with E. Stuartiana when 

 working on dried material and some fancied nuances. The prevailing foliage of E. Stuartiana is lanceolate, sessile. 

 Since publishing the first edition no new data have come to hand to alter our original classification. E. Bridgesiana 

 has a pale-coloured, compact, persistent, oil-yielding, " Box "-like bark, and a pale coloured timber; characters 

 entirely wantins in the "Apple" of Victoria (E. Stuartiana), as verified in the description given in the 

 Eucalyptographia. 



ESSENTIAL OIL.— Leaves and terminal branchlets for oil distillation 

 were obtained from Ilford, N.S.W., in February, 1898. The vield of oil was 

 0-57 per cent. The crude oil was of an orange-brown colour, and had an odour 

 resembling those belonging to the cineol-pinene group. Pinene was present, but 

 phellandrene was absent. The oil was rich in cineol. The higher boiling 

 portion consisted largely of the sesquiterpene. The pinene was determined 

 by its chemical reactions in the lower boiling portion. This Eucalypt gives one 

 of the richest cineol oils of the group to which it belongs, but unfortunately 

 the yield is not sufficiently large for it to be commercially profitable. 



The crude oil had specific gravity at I5°C. = 0-9120; rotation a B 4- 3-35°; 

 refractive index at 20 = 1-4666, and was soluble in ij volumes 70 per cent, 

 alcohol. The saponification number for the esters and free acid was 6-.2. 



On rectification 2 per cent, distilled below 169 C. (corr.), in which portion 

 the volatile aldehydes were pronounced. Between 169-174°, 27 per cent, dis- 

 tilled; between 174-183°, 57 per cent, came over; between 183-255°, 4 per cent, 

 distilled, and two more between 255-265°. These fractions gave the following 

 results : — 



First fraction, sp. gr. at 15° C. = 0-9065; rotation a v + 5-35°. 



Second ,, ,, ,, = 0-9128; ,, a D + 2-70°. 



Third ,, ,, ,, = 0-9136; ,, not taken. 



Another sample of the same oil was separated at 183°. This had specific 

 gravity at 15° = o-qii, and rotation a D + 3-4°. 



The cineol, determined by the phosphoric acid method in the portion 

 distilling below 183° was 65 per cent., indicating about 58 per cent, in the crude 

 oil (O.M.). 



