Asclepiadaceae Philippinenses. 565 
3 mm longis; corolla rotata, alte 5-fida, 1,5 em diametro, utrinque glabra, 
lobis ovalibus obtusissimis, margine subinconspicue ciliolatis, gibbis 5 
conicis obtusis, intus in basi corollae cum lobis alternantibus; gy- 
nostegio humili c. 2 mm alto, 5-angulari, sessili, coronae gibbis semi- 
orbicularibus obtusissimis haud bene conspicuis in dorso antherarum; 
antheris e basi obtrapezoidea suborbicularibus obtusissimis, apice incurvis; 
polliniis erectis faleato-clavatis, translatoribus tenuissimis subduplo longio- 
ribus retinaculo oblongo polliniis subduplo minori basi affixis. 
Luzon: Thickets along the seashore, at Limay, Province of Babaan, 
E. D. Merrill, no. 7477, flowering in February 1911. 
This plant is evidently identical with the Asclepias peregrina Blanco 
therefor I have chosen the same specifie name. The nearest all are 
S. carinatus Wall and S. Warburgii Schltr. 
35. Heterostemma angustilobum Schltr., spec. nov. 
Volubilis, alte scandens, ramosa; ramis filiformibus, glabris, laxe 
foliatis; foliis oblongis, breviter acuminatis, basi rotundatis, 7,5 —11,5 cm 
longis, medio fere 3—6 cm latis, petiolo 2—4 cm longo; cymis breviter 
pedunculatis, dense  plurifloris, nunc ramosis cum ramis abbreviatis, 
peduneulo petiolis vulgo breviore, pedicellis inaequilongis, filiformibus 
sparsim puberulis, usque ad 3,5 em longis; floribus mediocribus sub- 
patentibus; calycis fo:iolis lanceolato-oblongis, obtusis, dense puberulis, 
c. 1 mm longis; corolla peralte 5-fida, 9 mm longa, extus minute pa- 
pilloso-puberula, intus glabra, basi anulo tenui gynostegium cireum- 
ferens donata, lobis oblongo-ligulatis, obtusis; gynostegio subsessili, c. 
1,5 mm alto; corona stellari, foliolis exterioribus dorso antherarum medio 
affixis oblongis, obtusiusculis, interioribus trifidis, segmentis subulatis 
patentibus lobulo intermedio squamis exterioribus et lobulis lateralibus 
duplo longiore 1 mm longo; polliniis illis Heterostammatis collini Schltr. 
valde similibus sed minoribus. 
Mindanao: Mt. Apo, District of Davao, A. D. E. Elmer, no. 10814 
flowering in June 1909. 
The type of an new section, perhaps a new genus, distinguished 
by the very deeply cut corolla with a ringlike corolline corona at 
base and a double staminal corona. The anthers and pollinia much 
resemble Heterostemma. 
36. Ceropegia Merrilli Schltr., spec. nov. 
Herba perennis, volubilis, scandens; caule ramisque filiformibus, 
flexuosis, elongatis, laxe foliatis, glabris; foliis patentibus patulisve petio- 
latis, elliptico-lanceolatis, acuminatis, utrinque glabris, textura tenuibus, 
5—7,5 em longis, medio fere 1,7—2,7 cm latis, petiolo 2—2,5 cm longo; 
inflorescentiis breviter pedunculatis, dense paucifloris, pedunculo pedi- 
cellisque glabris, c. 1,5—2 cm longis; floribus illis C. Cumingianae Dene. 
similibus sed minoribus, urceolatis, c. 3 em longis; calyeis foliolis lanceo- 
latis, acutis, 3 mm longis; corollae tubo e basi subgloboso-ampliata curvato 
sensim paulo angustato, ostio leviter infundibulari-dilatato, utrinque 
