462 LXXIII. APOCYNACEiE -[WrigMia 



panicles. Corolla i in. long, J-J in. across, lobes overlapping to the left, stamens 

 inserted at the base of tube. Follicles 6-12 in. long, torulose, the slender seedless 

 intervals 1-2 in. long. Caoutchouc, supposed to be the produce of this species, is ex- 

 ported from Tonkin. 



10. VALLARIS, Burm. ; PI. Brit, Ind. iii. 650. 

 Species 5-6, Indo-Malayan region. 



V. Heynei, Sprengel.— Syn. V. dichotoma, Wall.; Wight Ic. t. 438 

 Brandis P. PL 327. Vera. Dudhi Bel, Hind. ; Kinbot gyi, Burm. 



A woody twining shrub, bark ash-coloured, young shoots and inflorescence 

 pubescent, otherwise glabrous. L. elliptic-oblong, blade 3-5, petioles £-1 in. 

 long, above their insertion a circle of small cylindric glands. PL white, 

 fragrant, on slender pedicels, in lateral 7-15-fld. corymbs, corolla-tube short, 

 cylindric, limb spreading, f in. across. Anthers exserted, conniving in a cone 

 adhering to the stigma, cells with long basal spurs, connective with a large 

 dorsal gland. Fr. 6 by 2 in. straight, tapering from a rounded base, the two 

 carpels separating when ripe, seeds J-.| in. long, ovate, ending in a short 

 beak, which bears a tuft of long silky hairs. 



Subhimalayan tract, from the Jumna eastwards, ascending to 5,000 ft. Assam, 

 Lower Bengal. Central Provinces. Western Peninsula. Burma, dry region of the 

 Irawadi valley from Prome upwards. Fl. Dec-May. Often grown in gardens. 



Pottsia cantonensis, Hook. & Am. (P. Hookeriana, Wight Ic. t. 1306 bis ; P. ovata, 

 A. DC). Assam, Khasi hills, Cachar. Tenasserim. Malay Penins. and Archip. 

 Tonkin. China. An evergreen climbing shrub, young shoots minutely puberulous. 

 1. ovate, blade 3-4, pet. slender 1 in. long. Fl. pink, in lax axillary and terminal 

 panicles, pedicels slender, J in. long, corolla-tube cylindric, ^ in. long, lobes nearly as 

 long. Anthers [exserted, cells with basal empty spurs, filaments hairy, carpels 

 distinct, haii-3', enclosed in a deeply 5-£d disk. Follicles slender, flexuous, 12 in. long, 

 seeds linear with a deciduous coma. i 



Nerium odorum, Solander (Ganera, Pb. ; Kaner, >Cind.). A poisonous but beautiful 

 shrub, common in rocky stream beds or in ravii 'ss and river beds which are dry in 

 winter. Afghanistan. Baluchistan (to 6,000 ft.). .Outer N. W. Himalaya, to 5,500 ft. 

 Central India. China. Grown in gardens with single and double white or pink sweet 

 scented fl. L. in whorls of 3, linear-lanceolate, 4-6 in. long. Fr. linear 6-9 in. long. 

 N. Oleander, Linn., with broader 1. and larger scentless fl. is a common shrub in the 

 Mediterranean region, and Western Asia, as far as Syria and Kurdistan. A third 

 species, N. muscdtense, A. DC, with scented fl. grows in Muscat and Southern Persia in 

 dry water courses like the two others. These species are supposed to be distinguished 

 by the segments of the corona-lobes. These, however, vary exceedingly, in N. odorum from 

 3 to 7 and in N. Oleander from 3 short triangular to numerous linear or irregular seg- 

 ments. They may be regarded as local forms of one species which extends from the 

 Mediterranean region to China. A number of Indian trees or shrubs of wide distribu- 

 tion bear different names in different countries, such as: Rhus Cotinus (velutina), 

 Crataegus crenidata (Pyracantha), Albizzia Jidibrissin (mollis), Cephalanthus occidentalis. 

 naucleoides), Cedrus Deodara (Libani, atlantica). 



11. STROPHANTHUS, DC. ; PL Brit. Ind. iii. 655. 



Glabrous shrubs, usually climbing, 1. opposite. PL in terminal corymbs 

 Sepals glandular within. Corolla- tube cylindric, often short, widening into a 

 funnel-shaped or campanula te mouth, lobes acuminate or produced into long 

 narrow tails, scales 10, paired, free or connate. Stamens inserted at the upper 

 end of the cylindric tube, anthers lanceolate, acuminate or produced into a long 

 bristle. Follicles large, hard, divaricate, seeds spindle-shaped. Species about 

 40, Africa and tropical Asia. 



A. Corolla-lobes long, 2 in. and upwards. 



1. S. Wallicliii, A. DC. (S. dichotomus, Wall. Wight Ic. t. 599 ; 8. caudatus, Kurz) 

 Assam. Khasi hills. Tenasserim (Kurz). Singhbum. Northern Circars. Corymbs 

 lax spreading, many-fld., sepals and bracts linear-lanceolate J in. long. Corolla yellow 

 and pink, lobes 1-3 in. long. 2. S. dichotomus, DC. (D. longicaudatus and Griffithii, 



