CORNACEAE 



Cornus controversa HemsI. Bot. Mag. 135: sub. /. S261. 1900; Kevv Bull. 1909: 331. 

 1909; Wang, Pflanzenr. 41 (iv. 229) : 49. 1910; N'akai, F!. Sylv. Kor. 16: SI. (. 2.\ 

 26.1921. TfUA/^.-^ail ^J/Z/'P'. /'f^^ 



Indo-China, Tonkin, Chapa, PéUlol 2485, April 1936, in shrubby savannas, ait. 

 1500 m. Himalayan région through China to Kwangtung and Shantung to Korea, 

 Japan, and Formosa. 



Hitherto a single species has been credited to Indo-China, Cornus capitata 

 Wall.; Evrard in Lecomte, FI. Gén. Indo-Chine 2: 1192. 1923. In addition 

 to the very characteristic and widely distributed Cornus controversa Hemsl., 

 which is well characterized by its large alternate leaves, the foUowing 

 opposite-leaved Indo-Chinese species is described as new: 



Cornus oligophlebia sp. nov. § Thelecranîa, Amblycaryum. 



Arbor 12-15 m. alta, ramis ramulisque glabris, ramiilis in sicco subatris 

 vel atro-brunneis, ultimis 2.5-3 mm. diametro novellis plus minusve adpresse 

 ferrugineo-pubescentibus; foliis ellipticis vel elliptico-ovatis, acuminatis. 

 basi late acutis vel rotundatis, coriaceis, rigidis, utrinque subconcoloribus 

 vel subtus paullo pallidioribus, subnitidis vel opacis, in sicco olivaceis vel 

 atro-olivaceis, 8-14 cm. longis, 4-8 cm. latis, glabris, vel utrinque con- 

 spersissime breviter adpresse subalbido-pubescentibus glabrescentibus; 

 nervis primariis utrinque 3, subtus elevatis, perspicuis, curvatis vel curvato- 

 adscendentibus, obscure arcuato-anastomosantibus; petiolo crasso, 1-2 cm. 

 longo, glabro vel consperse subadpresse subferrugineo-pubescenti, alabastris 

 a.xillaribus (quoad visis) adpresse ferrugineo-pubescentibus; inflorescentiis 

 terminalibus, amplis, cymoso-paniculatis, pedunculatis, 8-11 cm. latis, aper- 

 tis, multifloris, pedunculo 2-3 cm. longo, ramis inferioribus 4-6 cm. longis, 

 patulis, partibus vetustioribus glabris vel glabrescentibus, in sicco subatris, 

 partibus junioribus breviter consperse subadpresse pubescentibus; floribus 

 albidis, pedicellis 1-1.5 mm. longis, breviter adpresse cinereo-pubescentibus ; 

 calycibus plus minusve urceolatis, 2 mm. longis, subdense breviter adpresse 

 cinereo- vel subferrugineo-pubescentibus, dentibus 4, brevissimis, acutis, 

 vix 0.5 mm. longis; petalis oblongis, circiter 3 mm. longis et 1.3 mm. latis, 

 acutis, extus brevissime conspersissime adpresse pubescentibus; filamentis 

 glabris, petalis aequilongis; antheris 1.5 mm. longis; stylo cylindraceo, 2 

 mm. longo, obscure longitudinaliter striato-sulcato, glabro, stigmate puncti- 

 formi vel brevissime 2-lobato.>«*»* ■^daJi: ^^7 ^ /^J'-Z. 

 Indo-Chin.a, Tonkin, Chapa, Pétdot 24S4 (type), .UôS, July 1928 and August 1931, 

 altitude 1400-1500 m. 



The alliance of this species is clearly with Cornus Wilsoniana Wang., 

 which is represented by spécimens from Hupeh and Kwangtung. It differs 

 in its much larger, thicker, diiïerently shaped, glabrous or nearly glabrous 

 leaves, which are of about the same color on both surfaces, olivaceous or 

 atro-olivaceous when dry, not pale as in Wangerin's species, the primary 

 reticulations being évident, especially beneath, thèse being slender and 

 obscure or even obsolète in Cornus Wilsoniana Wang. 



'A^r. inipressinervis var. no 



51 yne^.'iaa'^ii/ff. /^y^. 



gustioribus (7-12 cm. longis, 3-4 cm. latis) gracili- 



A typo differt foliis angu 

 ter acuminatis, nerviis primariis supra impressis, inflorescentiis minoribus 

 (5-6 cm. latis), floribus paullo majoribus. 



Indo-Chin.a, Tonkin, Chapa, PéUlol 24S4, August 1940, a tree 8-10 m. high, altitude 

 1500 m. 



Additional material may well prove that this form, hère placed as a 

 variety, may be worthy of spécifie rank. 



