a 
Ce 
ae ro etal 
532 ROBINSON. 
easiest means of distinguishing the species. Moreover, the staminate receptacles 
are solitary, nearly sessile, and their bracts are less completely fused: the 
eystoliths themselves and their arrangement are very different in the two species. 
The close alliance is undeniable. The leaves are eaten as greens in the Batanes. 
Local name (Batanes): reyrey. 
28. Elatostema carinoi W. R. Shaw in herb. sp. nov. 
Monoicum vel dioicum, erectum, succulentum: receptaculis staminiferis 
breviter pedunculatis vel subsessilibus, magnis, bracteis basi coalitis, 
brevissime corniculatis; floribus tetrameris: receptaculis pistilliferis ses- 
silibus: foliis membranaceis, oblique ellipticis, basi valde inaequilatera 
acutis vel subobtusis, margine dentatis, apice acuminatis, triplinerviis. 
Staminate receptacles on peduncles usually stout up to 2.5 cm long, 
or more slender or subsessile, attaining a size of about 2 cm by 1.5 cm, 
the bracts as seen from without apparently 2, free nearly halfway to tle 
base, but each of these formed by the union of an outer bract with the 
outer halves of one of each of the two next pairs of inner bracts, the 
inner halves of the latter embracing the flowers, dividing the receptacle 
into 4 parts, the free portions of the outer bracts in mature receptacles 
about 5 mm long and 9 mm wide, keeled, in young receptacles barely 
corniculate ; pedicels about 1.5 mm long; perianth-segments 4, about 2 
mm long, the outer pair oblong-ovate, corniculate, the inner pair oblong- 
lanceolate ; filaments 2 mm long; anthers 1 mm, their cells widely diverg- 
ing: pistillate receptacles sessile, about 1 cm in diameter, the margins 
revolute; bracts fused except at the margins, the free portions of the 
outer pair broadly triangular-ovate, 2 mm long, acuminate, ciliate, the 
others narrower; bracteoles linear or linear-oblanceolate, 2 mm long, 
strongly ciliate; pedicels about 0.5 mm long, perianth minute, 3-lobed ; 
ovary ellipsoid, about 0.5 mm long; stigma pilose. 
Erect, 835 em to 1 m high, succulent, the stems glabrous or more often 
more or less pilose at the apex: leaves subsessile, the lamina membrana- 
ceous, obliquely narrowly to broadly elliptic, 6 to 12 em long, 1.5 to 3.5 
em wide, strongly inequilateral, the base acute or on the wider side often 
obtuse, the margin of the wider side with from 8 to 12 teeth above about 
the basal third, the narrower usually with 7 or 8 in the apical half, the 
apex prolonged into a slender acumen 1 to 2 em long; triplinerved, ad- 
ditional veins 4 to 6; glabrous or the veins of the under surface pilose ; 
stipules lanceolate to linear-oblanceolate, 8 to 13 mm long. 
Luzon, Province of Bontoe, Vanoverbergh 510; Province of Benguet, Bur. Sct. 
2828 Mearns ; Baguio, Phil. Nor. Sch. 428 Cariiio (type), For. Bur. 4811 Curran: 
Lusod-Bayabas trail, For. Bur. 15752 Curran; Bued River, Merrill 4847: Prov- 
ince of Nueva Vizcaya, Quiangan, Merrill 206, part. Siqutor, near San Antonio, 
Merrill 7205. : 
Although this has much resemblance to #. longipedunculatum Elmer, its closer 
alliance is with the species here identified as H. longifoliwm Wedd., as shown by 
the structure of the staminate receptacles, differing from the latter in the nature 
of its pubescence, the stipules, and the more delicate venation, with the veins 
