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March 27, 1915] Two Hundred Twenty Six New Species— II 2847 



distinguishing characters from 456 Cuming, a cotype sheet 

 of which is in the Bureau of Science herbarium. 



Some of these very closely allied species of Elatostema 

 seem to be gregarious for some reason or another. Elatostema 

 agusanense Elm. and Elatostema longifolium Wedd. were col- 

 lected under one number in the field, though the dry 

 material could easily be separated into two groups. A 

 similar association is found between Elatostema umbrinus Elm. 

 and Elatostema urdanetense Elm. 



Elatostema antonii Elm. n. sp. 



Heavily succulent and few stemmed tufts; stems usually 

 3 or more from the same root cluster, reclining at the base 

 and spreading, usually sloping downward, subterete, 2.5 cm 

 thick when fresh at the base, soft herbaceous and green, 

 1 m long or shorter, glabrate, curing yellowish green along 

 the terminal or leaf hearing portion, the internodes deeply 

 channeled along the upper side of the prostrate or inclin- 

 ing stems clear to the leaf bearing tips, the lower side tow- 

 ard : the base bearing roots, very seldom rebranched. Leaves 

 alternate, usually several toward the distal end, in 2 lateral 

 rows, flat, chiefly descending, much paler green on the soft 

 pubescent or lanose nether side, glabrous above and distinct- 

 ly covered with numerous chalky white cystoliths, drying 

 unequally green on the sides, 2 dm long by 7.5 cm wide 

 above the middle, terminated in a linear sharply pointed 



1 cm long apex, a trifle inequilateral, basal portion broadly 

 cuneate, subentire toward the base, otherwise serrately tooth- 

 ed, upper edge nearly straight, lower side of the lamina 

 broadest, obovately oblong in general outline; petiole 1.5 to 



2 cm long, dirty hirsute along the lower side, broadly 

 caniculate along the upper; midrib nearly straight, green 

 and soft yellowish green hirsute beneath; lateral nerves 7 

 to 9 on each side, much ascending and usually curved, 

 those along the lower side mainly forked toward their distal 

 ends, cross reticulation obscure although more numerous 

 along the toothed margins; stipule or bud bract caducous, 

 linear to lanceolate, very pale green at least when dry, up 

 to 3 cm long, slenderly pointed or blunter, minutely to- 



