Baulùnia tenuiflora Watt ex C. B Clarke, Jour. Linn. Soc. Bot. 25: 18. t. 6. 1889. 

 Baubinia calerviûora Chen, Jour. Arnold .'\rb. 19: 129. 1938, Lingnan Sci. Jour. 

 18: 479. 1939; Mcrr. Jour. Arnold Arb. 21: 368. 1040. 



Chens species was credited to Indo-China in 1940 on the basis of Pételot 

 2165 from Chapa, but it has since transpired that B. catcrviflora Chen is 

 identical with the much older B. tcnuiflora Watt, originally described from 

 ;Munnenore. The species extends from Burma to Siam, northern Indo- 

 China, and Yunnan. 7«*^- ^-^^-^J .' ^^^ ^^^-^ 

 Baiihinia i-areinopli; Ha sp. nov. § Phanera. %»^»,. "l-CLÛ. . ^S ' J "Jf, /^ U-i. 



Frutex scandens, ramulis petiolis infiorescentiis et foliis subtus perspicue 

 subadpresse castaneo- vel rubiginoso-subferrugineo-pubescentibus, vel in 

 foliis vetustioribus indumento pallide cinereis, ramis teretibus, laevibus, 

 glabris, ramulis ultimis circiter 2 mm. diametro, dense subadpresse villosis; 

 foliis fere ad basim tissis vel lobis tota liberis, coriaceis, basi distincte corda- 

 tis, 10-12-nerviis, supra glabris, olivaceis vel atro-olivaceis, minute subdense 

 reticulatis, subtus uniformiter breviter subadpresse pubescentibus, lobis vel 

 foliolis 6-10 cm. longis, 2.5-4 cm. latis, omnino liberis vel deorsum breviter 

 (2-6 mm.) connatis, inaequilateraliter oblongis. fere semilunaribus, obtuse 

 acuminatis, falcatis, leviter incurvatis, apices saepe attingentibus vel imbri- 

 catis; petiolo 1.5-5 cm. longo, dense villoso: infiorescentiis terminalibus, 

 dense subrubiginoso-villosis, brevibus, simpliciter racemosis, haud corym- 

 bosis, 6-8 cm. longis, ad 5-6 cm. latis, axibus abbreviatis (2-5 cm. longis), 

 fîoribus plus minusve confertis; pedicellis 1-1.5 cm. longis, bracteis lanceo- 

 latis, acuminatis, S mm. longis, bracteolis ad basim calycis tubi linearibus, 

 4-5 mm. longis, deciduis; calycis tubo cylindraceo, circiter 6 mm. longo, 

 3.5 mm. diametro, basi acuto, cum lobis extus dense adpresse subrubi- 

 ginoso-villoso, lobis 5, refiexis, oblongis vel oblongo-ellipticis, acuminatis, 

 intus glabris, circiter 1 cm. longis et 4 mm. latis; petalis vix unguiculatis sed 

 deorsum angustatis, obovatis vel oblongo-obovatis, rotundatis. basi acutis, 

 intus glabris, extus dense adpresse subrubiginoso- vel ferrugineo-villosis, ad 

 1.8 cm. longis et 1 cm. latis; staminibus fertilibus 3, filamentis sursum 

 glabris, deorsum villosis, circiter 12 mm. longis; antheris oblongis, 5 mm. 

 longis; ovario oblanceolato, circiter 8 cm. longo, dense ferrugineo-villoso, 

 stylo ad 15 mm. longo, deorsum plus minusve subadpresse villoso supra 

 médium glabro; leguminibus (valde immaturis) dense villosis. 



Indo-China, Tonkin, Tsai WonR Mo Shan and Sa Wong Mo Shan (Sai Vong Mo 

 Leng), in the extrême northeastern part of Indo-China just south of the juncture of the 

 Kwangtung-Kwangsi-Tonkin boundaries, W . T. Tsang 29033 (type), 29878, May 11-20, 

 1939, and May-Dec. 1940, in thickets, flowers white, fragrant. 



This is a remarkably distinct species, falling in Gagnepain's section I 

 (ovaries pubescent, not glabrous, as indicated by him in his key), but differ- 

 ing from ail of the 21 species placed by him in this group by the leaves being 

 divided almost or quite to the base, the sinuses normally very narrow, the 

 somewhat incurved apical parts of the lobes or leaflets often touching or 

 overlapping, somewhat suggesting the claws of a crab. The short, crowded, 

 simple racemes are also characteristic, for most of the species in this group 

 hâve corymbose inflorescences. The apical parts of the buds are ellipsoid 

 and about 1 cm. long, exceeding the calyx tubes in length. 



