SECTION I: G. DAVIDSONII 65 



The peculiarit}- of occasionally forming a supplementary bracteole, 

 directly attached to the base of the calyx (f. 4), does not appear to have 

 been described previously. It is suggestive of a second whorl of bracteoles 

 of which as a rule only one seems to be formed. Unlike the minute 

 bractlets described by Cook, and which he believes are formed to protect the 

 glands, the structure seen in this plant is of the same form and size as 

 the other bracteoles, is in fact a fourth bracteole within and alternating 

 with the others, and there are no glands present for it to protect. 



Habitat. This tall very ornamental wild shrub was originally Australia, 

 collected during the McDougal Sturt journey to the interior of Aus- 

 tralia in 1839. It has since been found in many other parts of that 

 country, such as in the vicinity of Lake Eyre, Mt. Watson, Central 

 South Australia (Gosse's Exped.) towards Spencer's Gulf, Warburton, 

 Mt. Lyndhurst, &c., &c. It would, however, seem to be confined to 

 Australia. 



Citation of Specimens. There are admirable examples of this species in Speci- 

 the Herbaria of Kew Gardens, the British Museum, Edinburgh, &c. : mens. 

 McDougal Sturt's specimen n. 235 coll. in 1839 ; Beckler, n. 1, 1861 ; 

 Gosse's Exped. Comm. B. Schomburgk, 1874, n. 239; Elder Exped. 

 Comm. 1891, collected E. Helms ; Lake Eyre, coll. Mr. Andrews 1875 

 n. 81 ; Lyndhurst coll. Max Koch, 1899, n. 12. In the Br. Mus. ; 

 Baron F. von Mueller, 1862, ' D. Sturt's n. 20, found in the beds of the 

 creeks of Barrier Range.' 



2. G. DAVIDSONII, Kelogg, Proc. Calif. Acad. Scien. (1873), 

 vol. v., 82-3 ; Brewer and Watson, Bot. California (1876), 

 vol i., 82. 



Leaves ovate cordate suddenly acuminate, occasionally 3-angled Descrip- 

 on upper half, minutely stellately hairy or sub-glabrous. tion< 



I have grave doubt as to this being specifically distinct from 

 G. Klotzschianum. I leave it here more on account of its 

 geographical position than anything else. The material seen by me 

 is more satisfactory than with the undoubted samples of Andersson's 

 species. I accordingly give a more detailed description than 

 hitherto published, especially of the fruit and seed (see Plate 

 No. 3, ff. 1-8). 



Stems round, bright red, wrinkled, glabrous below, cinereous, and very 

 minutely hairy above. Leaves 2 x 2 inches broad, ovate cordate, suddenly 

 acute (poplar-like), quite entire (never lobed), but sometimes showing a 

 tendency to be three-angled on upper half ; 5-nerved the central one only 

 with a minute gland near the base (f. 2), minutely stellately hairy, especially 

 on the veins, pale-coloured below ; petiole nearly as long as the blade, 

 where it becomes thickened and glandular ; stipules very minute linear 



F 



