215 



FLACOURTIACE.E. 



ERYTHROSPERMUM CANDIDA Becc. in litt.= Gestroa Candida Becc. Malesia, i. 

 184. 



Manokoeari, Langgen, land edge of mangrove association. Fl. Jan. 

 6224. 



Distrib. New Guinea (D.N.W., Ramoi, Beccari). 



Tree with white flowers. 



I am indebted to the kindness of Dr. Beccari for a specimen of his 

 Gestroa Candida, which proved identical with my plant. It also shows with 

 the above some flowers with undeveloped ovaries among the more numerous 

 $ ones. Dr. Beccari wrote that he now considered the plant to be an 

 Jirytlirospermum, and on investigation I am myself inclined to the same 

 view. 



BEGONIACE.E. 



BEGONIA (PETERMANNIA) HUMBOLDTIANA Gibbs, sp. nov. 



Herba glaberrima ; caule erecto, ramosissimo. Folia petiolata, obovato-lanceolata, 

 basi valde inaequalia (uno latere cordato, altero cuneato), apice tenuiter anguste- 

 acurainata, grosse et regulariter inciso-serrata, chartacea, supra flavo-viridula, albido 

 punctulata, subtus dilute griseo-albida. Inflorescentia terminalis, quam folia 

 brevior. Flos tf sepalis 2, roseis, orbiculari-cordatis ; filamentis basi connatis. 

 Flores $ petalis 5, insequalibus ; stylis 3, connatis, apice spiraliter bifurcatis. 

 Fmctus 3-alatus, apice truncatus vel arcuato-obtusus. 



Hob. Humboldt Bay, in high forest by stream, 300-500'. Fl. $ ? , Fr. 

 Jan. 6253. 



A handsome plant, '75 m. high, growing abundantly in large clumps 

 along the banks of the stream. Leaves 12 cm. by 4'5 cm., sage-green in 

 colour, with 2-3 white spots in more or ess parallel lines between the lateral 

 veins, which are conspicuous, 4-5 on each side of the midrib. On the margin 

 the largest incisions vary from 1 cm. in depth and 1*5 cm. in breadth, 

 graduating insensibly to the extreme apex. Petiole 1 cm. long. Stipules 

 1'5 cm. long, often unequal in size, caducous, transparently membranous in 

 texture, and produced into long fine hair-like points. flower 6 mm. by 

 7 mm. (immature). ? flowers arising singly, opposite the upper leaves, on 

 pedicels 1'5-1*8 cm. long, the flowers being 2 cm. long and 3 cm. across ; 

 with unequal petals, of which the largest are 1'2 cm. by 6' 7 mm. ; the three 

 styles are bifid, spreading, 5 mm. long. Fruit I'l cm. long, 1'5 cm. across, 

 with equal membranous wings, 4 mm. broad in the centre and 5 mm. broad 

 at the apex of the fruit. The fruits were affected by insects and swollen out 

 of shape in nearly all the plants seen. 



This species is distinct in the very regular and finely graduated serrate 

 incisions of the leaves, with their parallel rows of white markings. 



