COLLECTED IN DUTCH NEW GUINEA. 155 
upperside, on each of which is borne a translucent trichome. The male flowers are 
solitary, axillary, enclosed in a pair of bracts. In this the plant resembles a Pilea 
rather than Hlatostema, but as the habit is T that of an Elatostema I refer it to 
that genus. 
ELATOSTEMA POTERIIFOLIUM, Ridl., sp. nov. 
Herba ascendens, parce ramosa, hirta, pilis acuminatis albis translucentibus, ramis 
8:5-10 em. longis. Folia alterna, oblonga vel obovata, inæquilatera, basi angustata, 
apice obtusa, dentatis dentibus latis, 1 cm. longa, 7 mm. lata, crassiuscula (sicca), 
superne atro-viridia, glabra, nervis 5 profunde depressis, subtus hirta, nervis elevatis; 
petiolis 2 mm. longis. Stipule ovatæ, lanceolate, acutæ, 4 mm. longæ, mem- 
branaceæ, cystolithis in linea media. Flores masculi non visi. Flores feminei in 
capitulis 4 mm. latis sessilibus; bracteæ lanceolate, acuminate, hirte ; pedicellus 
brevis. Sepala minuta, ovata, obtusa. Ovarium ellipsoideum, breviter stipitatum. 
Achanium ellipsoideum, 1 mm. longum, pallide flavescens, rubro-punctatum. 
Camp XIII, 10,500 ft, 
A pretty species, with thick, close, and dark green leaves. In the female capitula are 
a number of apparently sterile male flowers, each containing one stamen, with a 
broad filament and a slender triangular-ovate anther. 
ELATOSTEMA CELATICAULE, Ridl., sp. nov. 
Herba caulibus simplicibus vel paullo ramosis bn ascendentibus 10-20 cm. longis. 
Folia herbacea, disticha, sessilia, in uno plano imbricata, oblonga, semi-amplexi- 
caulia, valde ineequilatera, basi rotundata, apice obtusa, 9 mm. longa, 5 mm. lata, 
glabra costa subtus squamata excepta. Stipule membranacez, lineares, rufe, 
caduce. Flores masculi axillares, superni, sessiles; bractese lanceolate. Sepala 4, 
oblonga, ovata, caudato-mucronata, 2 mm. longa. Stamina 4, filamentis oblongo- 
linearibus, antheris linearibus magnis. Flores feminei 3-4-ni, in fasciculos axillares 
breves aggregati, verticillo bractearum suffultis, breviter pedicellati; bractez ad 6 
lanceolate, acuminatze, exteriores latiores, herbaces, longe ciliate, hirte, brunneo- 
striate, 3 mm. longz; pedicelli breves. Sepala angusta, lanceolato-linearia, 
acuminata, basi connata, brunnea, glabra, vix 1 mm. longa. Staminodia 4, majora, 
latiora et longiora, oblonga, obtusa, alba.. Stigma minuta, capitata. Achenium 
1 mm. longum, ellipsoideum, breviter pedicellatum, apice obtusum, brunneo-flavum, 
obscure pustulatum. 
Camps X to XIII, 6700 to 10,500 ft. 
A very remarkable species, with distichous leaves in one plane, entire and smooth, 
drying dark brown. The axillary male flowers are on the upper side, and the females 
on the lower side in branched fascicles with whorls of bracts, each surrounding three 
flowers. 
E 
