20,4 Merrill: Noteworthy Philippme Plants, XVII 455 



PERISTROPHE Nees 

 PERISTROPHE CORDATI BRACTEA sp. nov. 



Herba annua, 30 ad 40 cm alta, ramosa, ramulis junioribus 

 leviter pubescentibus ; foliis lanceolatis, chartaceis, utrinque 

 cystolithis numerosis instructis, 3 ad 7 cm longis, sursum an- 

 gustatis, apice obtuse acuminatis, basi acutis ad subobtusis, 

 nervis utrinque 4 vel 5; cymis paucifloris, bracteis inferioribus 

 oblongis ad lanceolatis, 2 ad 3 mm longis, superioribus foliaceis, 

 ovatis ad oblongo-ovatis, acutis, basi late rotundatis et distincte 

 cordatis, 12 ad 15 mm longis, 6 ad 10 mm latis; floribus circiter 

 2.2 cm longis, sepalis anguste lanceolatis, 4 mm longis, corolla 

 sursum leviter ciliata; capsulis 10 mm longis, leviter hirsutis, 

 seminibus 8. 



A slender annual herb 30 to'' 40 cm high, the lower portions 

 of the stems often decumbent, the branches, leaves, and bracts 

 with numerous cystoliths, the branches at most 1.5 mm in diam- 

 eter, the very young branchlets sparingly appressed-pubescent. 

 Leaves lanceolate, chartaceous, 8 to 7 cm long, 7 to 15 mm 

 wide, dark olivaceous when dry, entire or very obscurely undulate, 

 narrowed upward to the blunt-acuminate apex, the base acute 

 to subobtuse; lateral nerves 4 or 5 on each side of the midrib, 

 slender, obscure; petioles 3 to 10 mm long. Cymes terminal, 

 few-flowered, the bracts subtending the pedicels narrow, oblong 

 to lanceolate, at most 2 to 3 mm long, the two foliaceous bracts 

 subtending the flowers ovate to oblong-ovate, acute, the base 

 broadly rounded and distinctly cordate, 12 to 15 mm long, 6 to 

 10 mm wide, sessile, the bracteoles narrowly lanceolate, acu- 

 minate, 4 to 6 mm long. Sepals narrowly lanceolate, acuminate, 

 slightly pubescent, 4 mm long. Corolla pale purplish, about 

 2.2 cm long, the tube slender, 12 mm long and slightly ciliate 

 above, the broader lobes 9 to 10 mm long, 6 to 7 mm wide, 

 obovate, the narrower one oblong, obtuse, about 4 mm wide. 

 Anthers linear-oblong, 3.5 to 4 mm long, the upper cell slightly 

 overlapping the upper portion of the lower one. Capsules about 

 10 mm long, sparingly hirsute, the basal narrowed portion 5 mm 

 long, the seed-bearing part oblong, somewhat acuminate, about 

 2 mm in diameter. Seeds 8, about 2 mm in diameter. 



MiNDORO, Mount Calavite, Bur. ScL 39392 Ramos, April, 1921. 

 Along streams in primary forests at an altitude of about 700 

 meters. 



A species well characterized by its narrow lanceolate leaves 

 and its distinctly cordate floral bracts. 



