1 94 Transactions. — Botany. 



Hab. High plains, Waimarino, west side of Mount Tonga- 

 riro, County of East Taupo ; 1887 : Mr. H. Hill. 



2. O. hillii, sp. nov. 



A small stout erect glabrous bushy shrub, "12-18 inches 

 high" ; branches thick, many, the upper portions very leafy, 

 the lower scarred ; branchlets dark-coloured, grooved, shining, 

 gummy. Leaves small, numerous, close, sub-adpressed and sub- 

 imbricate, elliptic, elliptic-orbicular and obovate, li-3 lines 

 long, entire, petiolate ; tips rounded with a few loose scattered 

 woolly hairs, also about margins ; the upper surface brown, 

 reticulated and glossy ; the lower pale primrose-colour, with dry 

 gummy scurf, mid-rib very dark-coloured ; margins thickened 

 and recurved ; petioles dark-coloured, channelled, shining, sub- 

 ■| line long, those of obovate leaves tapering, those of elliptic, 

 etc., suddenly formed. Flowers sub-terminal in single axillary 

 heads ; peduncle slender, ^ line long ; heads campanulate, sub- 

 § inch long, 3-4 lines broad, each containing about 7 florets ; 

 involucral scales in 4 rows, glabrous, shining, tipped and mar- 

 gined with dry gummy exudation ; the inner longest, narrow, 

 linear-lanceolate, 1-nerved, sub-acute ; the outer broader and 

 sub-ovate ; margins and tips slightly hairy and ciliate. Pappus 

 reddish-brown, long, spreading, equal, very slender below ; tips 

 thickened and much serrulate, somewhat bushy. Achene long, 

 slender, sub-cylindrical, irregularly uneven, dark-brown with 

 black nerves, glabrous, with a very few scattered white hairs near 

 base, and sometimes forming a single broken longitudinal line. 



Hab. High plains, Waimarino, west side of Mount Tonga- 

 riro, County of East Taupo ; 1887 : Mr. H. Hill. 



3. 0. rigida, sp. nov. 



Shrub, " 2 feet high," diffuse with a rounded dome-like top ; 

 branches (specimens) 3-5 inches long, very stout (as thick as a 

 common-size lead pencil), rigid, densely clothed with closely - 

 adpresscd greyish wool. Leaves numerous, opposite, very 

 thick and rigid, almost sub- woody, regularly elliptic, usually 

 about 1 inch long, sometimes on same branchlet only h or 4; 

 inch, often concave, abruptly joined to petiole, not narrowed or 

 tapering, tips recurved ; glabrous, glossy, reticulated and rugu- 

 lose, dark-olive and greenish-brown on the upper surface ; 

 densely pilose on the lower with sbort closely-adpressed light- 

 reddish-grey hairs; margins entire and much tbickened, nar- 

 rowly and regularly woolly on the upper rim : petioles long, 

 3-7 lines, varying with the sizes of leaves, stout, channelled, 

 and densely pilose, their bases very thick, dilated, clasping. 

 Flowers terminal, corymbose at tips of branches ; corymb sub- 

 rotund, 1-1£ inches diameter, rather loosely branched in 

 sub-panicles of 3 heads, the base closely surrounded with 



