538 R. Schlechter. 
foliis patentibus patulisve oblongis, acuminatis, basi rotundatis, utrinque 
glabris, textura coriaceis, nervis secundariis patentibus, parallelis, 
1—11 cm longis, medio 3—5 cm latis, petiolo glabro, 1,5—2,5 cm longo; 
cymis amplis ramosis, multifloris, folia duplo vel plus duplo superantibus, 
pedunculo ramisque rufo-puberulis; floribus in genere inter minores, per- 
breviter pedicellatis; calycis foliolis suborbicularibus, dense rufo-puberulis, 
corolla duplo brevioribus; corolla c. 1,75 mm longa, usque supra medium 
5-lobata, utrinque glabra, lobis patentibus oblongis, obtusis; gynostegio 
corollae tubo aequilongo, sessili; coronae foliolis carnosis, ovalibus apice 
subrostrato-angustatis, antheram subaequantibus; antheris quadrato-ob- 
longis, crassiusculis; stigmatis capite obtuso, antherarum apices paulo 
excedente. 
Mindanao: Camp Keithley, Lake Lamao, Mrs. Mary Strong Clemens, 
no. 988 (typus), flowering in March 1907. 
A very distinct species, unlike any of the other Philippine ones, 
except the following, but well distinguished from this by its glabrous 
corolla and the longer differently shaped corona scales. 
2. Secamone syringifolia Schitr., spec. nov. 
Volubilis, alte scandens, valde ramosa; ramis ramulisque filiformibus 
flexuosis, glabris, laxe foliatis; foliis ovatis vel ovalibus, breviter et obtu- 
siuscule acuminatis, subcoriaceis, utrinque glabris, 10—11 cm longis, 
medio vel infra medium 5,7—7,5 cm latis, petiolo glabro gracili, 2— 2,5 cm 
longo; eymis amplis, jam e basi binatis, valde ramosis, laxe permulti- 
floris, ramulis pedicellisque minute rufo-puberulis, folia subduplo 
superantibus; floribus minutis, breviter pedicellatis; calycis foliolis sub- 
orbicularibus, glabratis, margine minute ciliolatis, corolla duplo brevi- 
oribus; corolla 1,5 mm longa, usque supra medium 5-lobata, extus glabra, 
lobis patentibus oblongis, obtusis, intus minute puberulis; gynostegio 
sessili, tubum corollae paululo superante; coronae foliolis suborbicularibus 
obtusissimis, gynostegio dimidium paulo tantum superantibus; antheris 
quadratis, carnosulis; stigmatis capite obtuso, antheras paululo excedente. 
Mindoro: Bongabong-River, H. N. Witford no. 1399 (typus) 
flowering in Jan. 1906. 
This species stands amongst the Philippine ones nearest to 5. recti- 
nervis Schltr., which is described above. The difference between the 
two species are there pointed out too. 
3. Cynanchum luzonicum Schltr., spec. nov. 
Terrestris, volubilis, scandens, ramosa; ramis filiformibus elongatis. 
flexuosis, glabris, laxe foliatis; foliis patentibus patulisve, petiolatis, ob- 
ibi acuminatis, basi hante utrinque glabris, textura tenuibus, 
—8 cm longis, medio fere 2—3 cm longis, petiolo 1—2 em longo, cymis 
DU MA racemoso-umbelliformibus, usque ad 5 em longis, pedunculo 
glabro, usque ad 4 cm longo, pedicellis glabris, usque ad 5 mm longis; 
floribus erecto-patentibus, illis C. physocarpi Schltr. similibus; calysis 
foliolis suborbieularibus, margine minute ciliolatis, obtusis, c. 1 mm longis; 
