1922-23.] BOTANICAL SOCIETY OF EDINBURGH 183 



ed. ii, p. 501 (1883), but the var. h. glabrescens, Syme, is 

 not mentioned in that book. In the late Dr. A. R. Duguid's 

 manuscript " Flora Orcadensis " (1858), this species is 

 recorded as having been found at the seashore at Scapa and 

 Berstane by Dr. Gillies and Dr. A. R. Duguid, but, no doubt, 

 it was the var. b. glabrescens, Syme, they found there, 

 because I did not see the type of the species growing at either 

 of these two stations. See " Journ. Bot.," No. xiii, p. 17 

 (January 1864) ; " Scot. Nat.," No. iii, New Series, p. Ill 

 (January 1884) ; " Annals Scot. Nat. Hist.," No. 33, p. 42 

 (January 1900) ; Bennett, " Suppl. Top. Bot.," p. 108 (1905) ; 

 and Spence, " Flora Orcadensis," p. 91 (1914). 



Vegetative Propagation of Haemanthus hirsutus, 

 Baker. By R. J. D. Graham and L. B. Stewart. 



(Bead 17th May 1923.) 



Detached scale leaves of Haemanthus hirsutus placed on 

 sand and given occasional water or left dry on a shelf in a 

 glasshouse with an intermediate temperature were found to 

 produce buds. On sand or shelf, development was equally 

 good, and took place most readily from January to March. 

 Scale leaves placed on sand in April remained fresh till January 

 of the following year, when bud development started profusely. 

 The buds form most generally on the abaxial side of the scale, 

 more rarely on the adaxial side, and the development is 

 independent of the surface of the scale exposed to light or 

 moisture. Development always occurs on the younger 

 portion of the scale towards the base, where buds form either 

 singly or in colonies of four or five. The buds originate from 

 the tissue of the scale and not from the stem, as was proved by 

 cutting off the base of the scale, thus removing any traces of 

 stem structure, which might have adhered to the scale. 



Microscopic examination of the scale shows a limiting 

 single-layered epidermis with thin cuticle. This is succeeded 

 by many layers of parenchyma containing starch uniformly 

 distributed. On the abaxial side of the scale extending up 

 to the medianally placed vascular bundles the parenchyma is 

 chlorophyllous. Development of the buds is initiated in the 

 superficial layers of this chlorenchyma. Buds with three 



