EHAMNACEAE. — CHAYDAIA 221 



variety. The species is well distinguished by its few-flowered inflorescence, its 

 narrow flower-buds and by its narrow sepals and petals. 



15. Berchemia polyphylla Wallich apud Lawson in Hooker f., FL Brit. Ind. I. 

 638 (1872). 



Birma. 



I know this species only from Lawson's very short description. He says: closely 

 related to B. flavescens Brongniart. But according to Lawson's description it 

 must be rather different. The leaves are described as from 2.5 to 3.75 cm. long 

 with petioles only 6 mm. long. Possibly it may be related to those forms which I 

 have referred to B. yunnanensis. 



16. Berchemia philippinensis Vidal, Rev. PL Vase. FUip. 91 (1886). 

 Philippine Islands: La Trinidad. 



According to the description this species seems to be most nearly related to B. 

 lineata DeCandolle, but the leaves have 10 pairs of nerves and are puberuious 

 beneath. The flowers have not yet been described. 



CHAYDAIA Pitard. 



Chaydaia Wilsonii Schneider, n. sp. 



Frutex scandens, 3-6 metralis; ramuli glabrij rotundi, novelli, 

 olivacei, fuscescentes, lenticeliis satis numerosis et distinctis, deinde ut 

 videtur brunnei, leviter rimosi, vetustiores cinerei; gemmae nondum 

 satis evolutae; stipulae breves (an apice deeiduae ut in Berchemia ?), 

 triangulares, dorso connatae, gemmam obtegentes. Folia altema, 

 decidua, papyracea, elliptica, basi asymmetrica, rotunda, apice obtusa 

 sed in acumen breve subito producta, mucronulata, 7-10 cm. longa 

 et 3-5 cm. lata, supra viridia, ut videtur opaca, glabra, subtus pallida, 

 epapillosa, tantum axilUs nervorum lateralium utrinque 8-9 minute 

 barbulata; petioli breves, 4-5 mm. longi, glabri, supra canaliculati. 

 Inflorescentia terminalis, pseudo-racemosa, glabra, parte efoliata 3.5 

 cm. longa; Sores virescentes, ad 5-fasciculati, fasciculis infimis in 

 axillis foliorum inter se satis distantibus; alabastra globosa, 1.5 mm. 

 crassa; pedicelli floribus breviores; structura florum fere ut in Ber- 

 chemia, sed sepaUs intus in medio rostellatis; petala late obovata, 

 apice satis emarginata, basi breviter unguiculata, sepalis triangulari- 

 ovatis vix acutis subaequilonga; ovaria stylo brevi bifido coronata, 

 basi (tamen in floribus juvenilibus) disco satis distincto circumcincta. 

 Fructus ignotus. 



Western Hupeh: Hsing-shan Hsien, thickets, alt. 1300 m., July 

 1907 (No. 3388). 



This species seems to be most closely related to C, (onkinemis Pitard in Lecomte 

 Fl. Gin. Indo-Ckine, 1. 925, fig. 117 (1-3) (1912), of which I have not seen a specimen: 

 Pitard describes the leaves as shining above and quite glabrous. He also says; 



