16078. Derris mindorensis Perk. & looping and 
twining climber, in light woods and shrubberies of old 
Stream depressions of the gogon flat near the Balsahan 
river at 50 fect, in gravelly Soil; stem terete, bendable, 
2 inchs thick, straight curved or kwxtex twining; wood 
very Soft, Stramineous, porous, odorless and without 
any teste; bark thiek, greyish Smooth on 
the epidermis, green hypodermis, the middle region white, 
the inner ter color; branches long, 
: ana drooping, grayish leaves shinning 
on the upper side, much paler beneath, 
inflorescence terminal or subterminal, erect, 
green exeept the odorless and deciduous flowers, calyx 
GaStaneous exactly even in the bud state, petals and 
filaments pure white except the strongly set-back standard 
which has a greenish Spot in the basal middie portion 
of it® ventral exposed side, ovary green 
to the yellowish stigma, anther yellow; young 
pods much and curved, Subpendant from 
Stalks; Puerto Princesa, April, 1911. 
13079, Aerus Scandens (Roxb.) Wall. Bi or peren- 
nial herbs, in dry stony 8011 of light woods in stream 
depressions at 50 feet of the cogon flat at or near the 
Balsahan river; stems suberect, 1 to 2 yards long, freely 
rebranched from near more or less reclining 
upon tation, terete, nodulose, 3/6 inch 
dish on the expo®8ed sides; leaves very 
membrancus, Soon wilting, or descending, flet, 
; reen beneath; the pyramidal 
divaricate or ascending 
Straw-color; Puerto Prineesa, April, 1911. 
16086. Gapparis mucronete Him n. Sp. A Small 
tree climber, in dry gravelly soil of jungled lightly 
wooded depressions of the cogon flat at 56 feet, near - 
the Salsahan river; stem quite os eree 1 inch thick, , 
terete, curved, only Sparingly branched toward the top 
or 10 to 15 feet from the ground, with sharp yet minute 
Spines at the ends of the leaf sears; wood white, soft, 
odorless and tasteless, with a large watery white pith; 
bark yellowish green, or gray, the hypodermis dark green, 
beneath this latericious, the inner region whitish; 
branches long, green, tough, the free dangling terminal 
portion very lax and gradually reduced in thiciness 
terminated with a suberect panicle 8 inches long an 
méearly aS wide acrofs the base; buds bard, green, globose, 
unbellately clustered at the ends of the divaricate or 
recurved branchlets, leaves alternatingly scattered ail 
along, pendant, coriaceous, pale green, nearly flat, 
Still paler green beneath, the apiculate point recurved; 
Puerto Princesa, April, 1911. 

