130 



GIBBSIA INSIGHTS Rendle, sp. nov. 



Fruteoc ramulis foliiferis colore cinerascente et pilis brevibus appressis hispidis. 

 Folia breviter petiolata, lanceolata, acuminata, margine crenato-dentato recurvato, 

 in facie superiore eleganter reticulato-impressa, hispidula, subtus inter nervos rubros 

 conspicuos dense albo-tomentosa ; petiolus ut in ramulo hispidus. Stipules infra 

 medium bifidse, triangulari-acutse, in margine superiore ciliolatse, uninerviaB. In- 

 florescentice geminatse, ssepius bis vel ter dicbotoma?, pedunculo ramisque tenuibus, 

 foliis 4-2-plo breviores. Cymulce ssepe floribus evolutis 7. Antherae connective 

 umbonato ; filamenta perianthium aequantia. Exocarpium laete-brunneum. 



Leafy branchlets 2-2'5 mm. thick. Leaves 5-8 cm. long, 1'2-1*7 cm. 

 wide ; petiole 3-7 mm. long. The leaves have a striking appearance ; the 

 three main nerves are impressed on the upper face, which is beautifully 

 embossed with small chequer-like areas representing the transverse and 

 small connecting veins ; the red main nerves on the lower face stand out 

 conspicuously on the intensely white tomentum covering the rest of the 

 surface. Stipules 3'5 mm. long, united in the lower third, each with a 

 strong median nerve. Inflorescences generally in pairs in the leaf-axils, to 

 2'5 cm. long ; the small dense cymes are crowded at the ends of the short 

 ultimate branches, the number of flowers in each varies a typical one 

 is represented in fig. C, of which a diagrammatic analysis is given in fig. D. 

 Bracts about *5 mm. long. Flowers jointed on very short pedicels, which 

 are less than 1 mm. long. Bud of male flower 1'5 mm. in diameter, perianth- 

 segments 1'6-1'7 mm. long. Ovary slightly compressed, ovoid, with a 

 narrow rounded keel running along the back and bearing a row of short 

 forwardly-pointing setse, at the base of each of which is a black dot ; 

 similar but slightly larger setse surround the stigmatic disc, covering it 

 when young but ultimately becoming reflexed (figs. I, J). Fruit about 

 1 mm. long ; crowned with the withered stigmatic disc ; exocarp bright 

 chestnut-brown. 



Hob. Arfak Mts., Angi lakes, edge of forest by ? lake, 7000'. Fl., Fr. 

 Dec. 5961. 



A second species of this genus was collected by Mr. Kloss on Dr. 

 Wollaston's Dutch New Guinea Expedition. The material is scanty, but 

 there is no doubt that it represents a plant congeneric with the Arfak 

 specimen and a distinct species. A description is appended : 



GIBBSIA CARSTENSZBNSIS Rendle, sp. nov. 



Frutex ramulis foliiferis veluti in G. insignis hispidis. Folia longius petiolata, 

 elliptica, acuminata, margine crenato-dentato, recurvato, in facie superiore reti- 

 culato-impressa, hispidula, subtus nervis exceptis albido-tomentosa ; petiolo tenui, 

 hispido. Stipulce supra medium bifida3, acutse. Inflorescentia et fruclus velut in 

 G. insignis. 



Leaves 4'5-7 cm. long, 2-2'5 cm. wide ; petiole l-2'5 cm. long; bracts 

 75 mm. long. 



