121 



5. NOTES ON THE DESCRIPTIONS. 



Following is the order followed in the description of a seedling (beginning 

 p. 132) :— 



1. Hypoeotyl. 



la. „ (Miss Flockton). 



2. Cotyledons (Petiole, Taper). 



2a. ,, (Undereurface, Miss Flockton). 



3. Stem. 



4. 1st Pair of Leaves (Shape, vestiture). 

 4a. „ (Petiole). 



4b. Number of peltate leaves. 



5. Subsequent pairs of leaves (Number, petiole, shape, vestiture). 



6. Intermediate Leaves. 

 6a. Miss Flockton's Notes. 



a. Oil-glands. 



In a few cases a roughened or glandular appearance has been attributed to oil- 

 glands, but this may not have been scientifically ascertained. Oil-glands are more or 

 less plentiful in most parts of every Eucalyptus plant, and the slight asperities in 

 seedlings are usually to be attributed to stellate and other hairs. 



b. Hairs. 



These are more or less distributed in seedlings, as may be noted under the 

 descriptions. Examples will be found under Renantherse, Small Cotyledons (Groups 

 1 and 2). Bisectae (Group 15). See also Part LVI, p. 321. 



c. Tubercular Gro wths. 



The subject has been touched upon at Part XLIX, p. 283. It is probable that 

 they may make their appearance in all species, given favourable conditions, but they 

 have been observed, naturally very small, in the axils of the cotyledonary leaves of 

 very many species, perhaps all. The species of bacteria concerned in the infections, 

 the shapes, &c, of the resulting growths, and other matters, will form the subjects of 

 further inquiry by a bacteriologist, 



