488 Transactions. — Botany. 



Ohs. A species very unlike in habit and general appearance 

 those two described indigenous ones — D. dicffenbachii and 

 D. lyelli, Hook. f. — also, those other three species (forming 

 the genus) of Tasmania, Fuegia, and Borneo ; being smaller, 

 neater and simple-branched, with larger and more numerous 

 flowers. 



Class II. MONOCOTYLEDONS. 



Order I. Orchidej3. 

 Genus 3. Bolbophyllum, Thouars. 



1. B. tuberculatum, Col. 



Bulb ovoid, dark-green, glossy, clothed with minute white 

 shining leprous circular bullate scales. Peduncle sub lin. 

 long, slender, with 3 sheathing cauliue bracts, equidistant, 

 membranaceous, pale, striate, 3-flowered. Flowers small, 

 usually 3 (sometimes by abortion only 2), rather distant, on 

 short pedicels, each with a sheathing bracteole at its base. 

 Perianth triangular, very oblique, gibbous at base (as in young 

 Dendrohium cunning hamii), whitish, very membranous; 

 sepals of nearly equal length, their tips and i;pper margins of 

 a violet tinge, slightly open, when fully expanded 2^ lines 

 broad ; dorsal sepal narrow, ovate, 1-nerved ; the lateral 

 pair much broader, triangular-ovate, dimidiate, 3-nerved, 

 sub-acute, connate in front under joint of labellum ; petals 

 white, ovate, obtuse, 1-nerved, ^ size (or less) of sepals ; 

 labellum exserted, sometimes the lamina is erect and falls 

 back on the column, 1 line long, sub-ovate-oblong, tip sub- 

 acute, thickish, smooth, margin entire, bright vermilion-red 

 with a central yellow line running to base, base truncate with 

 2 small longitudinal ridges at posterior part, its margins thin 

 incurved, claw slender very long (nearly as long as lamina), 

 yellowish, the joint excessively mobile. Column minute, lateral 

 appendages sub-triangular, hyaline, their tips retuse, with a 

 minute glossy gland at base in front ; anther pale-yellow, tip 

 circular, slightly erose. Capsule oblong, turgid, 3 lines long, 

 striate; striae light-red. Leaves, &c., as already described, 

 only some are larger 9-12 lines long and purple below; veins 

 (in fresh state) not visible. Ovary and peduncle tuberculated 

 as described. (" Trans. N.Z. Inst.," vol. xvi., p. 336.) 



Hah. Epiphytal on trees, forming pretty large and closely- 

 matted masses, woods near Palmerston, County of Manawatu ; 

 April, 1889 : Mr. A. Hamilton. 



Genus 12. Pterostylis, Br. 



1. Pt. s])eciosa, sp. nov. 



Plant stoutish, erect, 9in.-10in. high ; stem and leaves of a 

 reddish hue. Leaves : basal 0, but 2-4 small ovate pale 



