388 Transactions. — Botany. 



Genus 3. Celmisia, Cass. 

 1. G. ruahinensis, sp. nov. 



Khizome stout, with many long straggling thick rootlets. 

 Leaves 20-25, tufted, sub-narrow-oblong-lanceolate, 2-|in. to 

 3in. long, fin. broad, subacute, coriaceous, glabrous green and 

 obsoletely ribbed above (young leaves having a fine filmy- 

 white scurfy indumentum), thickly coated below with sub- 

 appressed light - yellowish - white wool, margins entire and 

 subrevolute, midrib below obsolete, slightly contracted at 

 petiole, which is as long as or longer than leaves, fin. wide, in- 

 creasing towards ba.se, thin, purple, margin glabrous and free 

 from hairs. Flowers 5 ; scape stout, twice length of leaves, 

 cottony, subappressed ; bracts several, distant, 9-12 lines long, 

 finely subulate, thin, green abcv 3 . cottony below, 3 lines wide 

 at base, clasping, extending to heaa ard there embracing in- 

 volucre. Heacl l^in. diameter, involucral scales numerous, 

 subulate, erect, woolly at margins and tips. Kay - florets, 

 ligula iin. long, linear-spathulate, white, tips obtuse entire 

 and slightly emarginate, tube glabrous, not thickened below ; 

 disk-florets, dark-yellow, glossy, 5-cleft ; styles long, exserted 

 from tubes, stigma linear-obtuse slightly and sparsely muri- 

 cated ; pappus few, erect, wavy, irregular, 1-2-3 lines long, 

 scabrid, acute. Achene linear, terete, 2 lines long, quite 

 glabrous. 



Hab. Kuahine mountain-range, east side, County of Wai- 

 pawa : Mr. A. Olsen. 



Obs. A species near to C. spcctabilis, Hook, f., from same 

 mountain-range at higher altitude, differing, however, in 

 several characters : in leaves, smaller margins entire, wool 

 beneath semi-appressed and of a lighter colour, midrib not 

 prominent, petioles thin, purple, not hairy ; in ray-florets, 

 ligula linear-spathulate, tips entire, tube glabrous and not 

 thickened below ; in longer exserted styles (both ray and disk), 

 and in slender narrow-oblong obtuse, not deltoid, stigmas, 

 which are very sparingly muricate. 



Genus 7. Bidens, Linn. 

 1. B. aurantiacus , sp. nov. 



Plant herbaceous erect, glabrous {prima facie), tops of 

 stems (two specimens main stems) 10in.-12in. long, simple 

 with a few small axillary branchlets above ; stem hard, fibrous, 

 2-£- lines diameter, subangular, deeply striate. Leaves few, 

 distant 4in. apart on stem, trifoliolate, 3m.-4in. long, opposite ; 

 central leaflet ovate-acuminate, 2in.-2-|in. long, fin. broad, 

 the two lateral ones opposite lip., long and broader in propor- 

 tion, deeply and closely serrate ; teeth large, regular, sharp, 

 subfalcate and minutely serrulate ; veins finely reticulate 



