129 



hirsuta, pilis albidis adpressis dense obtecta, demum asperrima, subtus subtiliter 

 brunneo-velutina, trinervia, costa media prominente nervis 2 lateralibus, arcuato- 

 anastomosantibus, reticulo inter venas conspicuo. Glomeruli feminei axillares, 

 sessiles, pisifonnes, densiflori. Perigonium tomentosum, fructiferurn albo-carnosum. 



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

 Fr. Dec. 5955. 



Leaves +6 cm. by 1*5 cm., green, but drying a dusty brown, densely 

 covered on the upper surface with punctiform cystoliths. Petioles 1*3 cm., 

 slender, densely puberulous. Stipules 4 mm., lanceolate, acute, tomentose 

 on the outside. Glomerules 4 mm. across, in fruit, forming a white swollen 

 receptacle. Flower ? 3 mm. long ; style filiform, hirsute, 2'5 mm. Achene 

 + 1 mm. long, covered with short stiff white hairs. 



This plant is distinct in the small narrow leaves with scabrid upper 

 surface and the very well-marked network of minor veins, forming minute 

 interstices, covered with dense brown tomentum on the under surface. In 

 the shape of the leaves it is nearest to P.mindartensis Elm., but differs in the 

 small size, more rigid texture and entire margins, the prominent venation 

 with fewer lateral veins, and the brown coloration when dry. 



GIBBSIA Rendle, gen. nov. (A. B. RENDLE.) 



Flores inonoici, unisexuales : HCasculi alabastro depresso-globosi, mucronati ; 

 perianthio fere ad basin 5-partito, segmentis valvatis, ovatis. Stamina 5, antberis 

 subrotundis, dorsifixis, in alabastro inflexis. Ovarii rudimentum lanuginosum. 

 Feminei perianthio brevi, late cupuliforme, persistente et basin fructus cupula 

 carnosula adnata tegente. Ovarium ovoideum valde obliquum ; stigma apicale, 

 sessile, discoideum, papillosum, margine setulis fimbriato; ovulum a basi erectum, 

 micropyle elongata, superne ampliata et fimbriata. Fructus subdrupaceus, parvus, 

 valde obliquus, exocarpium tenue, carnosulum, et super cupulam demum separabile, 

 endocarpium crustaceuin. Semen conforme, testa membranacea ; albumen carnosum ; 

 cotyledones parvae, ellipticae ; radicula superior. 



Frutices, foliis alternis, petiolatis, crenato-serratis, 3-nerviis, subtus canescentibus. 

 Stipiilae membranaceae, in unam intrapetiolarem alte bifidam connatae, deciduie. 

 Inflorescentice axillares, solitariae vel binae, foliis multo breviores, dichotomse. 

 Flores in cymulis parvulis androgynis apice ramulorum ultiinorum breviter pedi- 

 cellati. Bracteee minutae, ovatse, scariosae. 



Recalls the genus Delregeasia in its leaf-characters, but in characters of 

 flower and fruit is nearest the Malayan and Pacific Island genus Leucosyke, 

 which, however, has a penicillate stigma and the fruits crowded on a fleshy 

 receptacle ; there is no trace of a fleshy receptacle in Gibbsia. The fruit is 

 very characteristic ; the upper portion of the thinly succulent exocarp 

 separates like a cap, and the endocarp enclosing the seed is then readily 

 separable from the cup formed by the union of the somewhat fleshy perianth 

 with the lower part of the exocarp. 



