542 
ROBINSON. 
them. The chief differences are in the pubescence and the number of leaf-teeth, 
characters apt to be variable, but the specimens from the various localities are 
fairly constant with one another. Superficially, there is considerable resemblance 
between E. halconense and E. caudatum Hallier, 39 but they are probably in quite 
different alliances : it is very probable that E. thalictroides Stapf 40 is much more 
closely allied, though quite distinct. From E. lineolatum Wight, which it greatly 
resembles, it can readily be distinguished by the stipules; 
42. Elatostema integrifolium Wedd. in DC. Prodr. 1 6 1 (1869) 179. 
Procris integrifolia Don Prodr. PI. Nepal. (1825) 61. 
Elatostema- sesquifolium Hassle. Cat. Hort. Bogor. Alt. (1844) 79. 
Procris sesquifolia Reinw. ex Blume Bijdr. (1825) 511. 
Elatostema cuspidiferum Miq. PI. Jungle (1851) 22., 
Mindanao, District of Davao, Mount Apo, Elmer 105 11 / : Lake Lanao, Camp 
Keithley, Mrs. Clemens 1/06: District of Zamboanga, San Ramon, Copeland 735. 
Palawan, Malampaya, iM errill, 721/8 j Point Separation, Merrill SIS. 
It would be very difficult to get a better description of the plants above cited 
than that given for this species by Weddell, yet they are not exactly matched by 
any of two Javan collections received under the name of E. sesquifolium, nor by 
two from India named E. integrifolium , nor are they quite identical with one 
another; although there can be no doubt of the very close alliance of all nine. 
Blume, the only writer who has described the pistillate flowers of this species, 
has done so in such a way that his plants could hardly belong in Elatostema. To 
that genus, the staminate receptacles show that all of the Philippine' collections 
belong, but their pistillate receptacles are as yet unknown. Miquel, in describing 
E. cuspidiferum, which he as well as Weddell and Hooker later identified with 
E. sesquifolium, said that the staminate bracts were apiculate. They are not 
apiculate in the Philippine collections ; Hooker describes them as rounded. 
43. Elatostema scapigerum sp. nov. 
Receptaculis staminiferis magnis, longe pedunculatis, peduneulis e 
plantae basi oriundis, receptaculis pistilliferis in foliorum axillis ses- 
silibus : f oliis admodum parvis., oblique lanceolatis ad obovatis, bdsis uno 
latere acutis altero rotundatis, margine dent-atis, apice breviter vel haud 
acuminatis, subtriplinerviis. 
Staminate receptacles on rather stout pubescent peduncles 6 to 8.5 
cm long, arising in the axils of branches at or near the surface of the 
ground, 13 to about 20 mm in diameter ; bracts strongly fused near the 
peduncle, free for about 2 mm along the margins, stellately arranged, 
lanceolate, pilose, acuminate but hardly corniculate, a single ovate outer 
one seen; perianth-segments 4, ovate, corniculate, 2.5 mm long, cu- 
cullate, pilose; filaments 4, 2 mm long, anthers 1 mm long: pistillate 
receptacles sessile in the axils of present or fallen leaves, up to 5.5 mm 
in diameter; bracts fused, the free portions lanceolate or oblong-lance- 
olate, about 1.5 mm long, ciliate-serrate ; perianth 3-lobed, about 0.1 mm 
long; ovary ovoid, about 0.5 mm long, smooth or the achene somewhat 
striate. 
39 Ann. Jard. Buitenz. 13 (1896 ) 307, pi. 27, f. 3. 
10 Trans. Linn. Soc. Bot. II 4 (1894) 229, pi. 19, f. B, 5-S. 
