326 Transactions. — Botany. 



flowering-stem. Leaves few, single, on tops of long petioles, 

 spreading, in circumscription subreniform and narrow hemi- 

 spherical, l£in.-2in. long, 2^in.-3in. broad, trifoliolate, each 

 lobe largely petiolulate subflabelliform and broadly cuneate, 

 trilobulate, sinuses deep obtuse and very wide, lateral margins 

 always entire, lobules trificl (and variously laciniate), generally 

 with 1 large central and 2 small teeth their tips obtuse ; 

 petiolules slender sometimes lin. long, veined ; lamina thin 

 largely veined, with numerous compound anastomosing vein- 

 lets and venules ; petioles fistular, 7in.-10in. long, stout when 

 fresh, with a long narrow stipule at base. Flowers few 

 small, single on long erect peduncles, some directly from the 

 rootstock 9in. long, others (and generally 1-3) distant on 

 flowering-stem, axillary from a single cauline leaf and twice 

 the length of its long petiole — sometimes 4in. long, occasion- 

 ally 2 flowers springing together axillary on separate pedicels. 

 Sepals 5, much shorter than petals, concave, inflated, tawny, 

 glabrescent, 2-| lines long, broadly-ovate or oblong-rounded, 

 tips very obtuse, 3-nerved, nerves flexuous, margin very mem- 

 branous, white, pellucid. Petals 6, flat, narrow linear-spathu- 

 late, 4% lines long, sub 1 line wide, tips obtuse and emarginate, 

 tapering to base, pale-yellow glabrous, 5-nerved ; nerves 

 straight branching above not extending to tip ; gland near 

 base small, reaching across petal, hollow, depressed. Stamens 

 shore, sub 24 ; anthers elliptic slightly subapiculate. Achenia 

 orbicular, turgid, sub 1 line diameter, slightly rugulose-muri- 

 catulate; styles same length, curved, slightly puberulous ; 

 stigma capitate, subpenicillate. Eeceptacle small elongated 

 oblong subclavate, coarsely hairy at base. 



Hab. In watercourses, forests near South Norsewood, 

 County of Waipawa ; 1882 : W. C. 



Obs. This species is certainly near to B. macropus, Hook., 

 but on a close examination and comparison there will be found 

 several grave differential characters. Indeed, it was owing to 

 my having supposed it to be that species, or a variety of it, 

 that I have so long delayed describing it ; and to this opinion 

 I was in great measure led through merely reading the specific 

 description of that species as given in the Handbook. Be- 

 sides, I had intended to revisit Norsewood and to obtain more 

 and fresh specimens — which also caused me to put it off — 

 which I have never since done. Now, however, on referring 

 to the full and particular specific description of B. macropus 

 (the type specimens found by me at Poverty Bay in 1839), as 

 originally given by Sir Joseph Hooker in the " Icones Plan- 

 tarum," accompanied by a drawing and dissections (vol. vii., 

 tab. dcxxxiv.), the differences are plain and great, and clearly 

 shown in the drawing. That species has much larger sepals 

 than petals, which peculiar character also caused Sir Joseph 



