﻿1874.] of the Burmese Flora. 137 



* * Gynobase absent after the fall of the samaras or minute and shorter thaa 



the disk-lobes, the thick 3-lobed often cup-shaped disk usually wrinkled. 



Y^ Samara nearly as broad as long, with a vertical crest between the wings. 



All parts, also the ovary, quite glabrous ; disk iu fruit about 1 lin. broad, ...A. concava. 



Leaves more or less puberulous along the nerves beneath ; disk doubly smallex", hardly 



wrinkled, ... ... ... ... ... ...A. Helferi. 



X X Samara more than twice as long as broad, not crested. 

 All parts glabrous ; ovary hirsute, ... ... ... .,,.A. Roxhurghii. 



All parts hirsute ; ovary glabrous, ... ... ... ...A. hirsuta. 



1. A. NUTANS, Hf Ind. Fl. I. 421, non Juss. (A. lanuginosa^ A. 

 Juss. in Arch. Mus. Nat. Hist. III. 512 ; Hircea nutans, Roxb. Fl. Ind. II. 

 447, non Wall.). 



Hab. Chittagong (Wall. 1057) ; Ava, Bhamo (J. Anderson). Fr. 

 Jan. 



2. A. TOMENTOSA, A. Juss. in Arch. Mus. Hist. Nat. III. 511 ; Walp. 

 Eep. V. 299. (Rircea tomentosa, Bl. By dr. 225). 



Hab. Not unfrequent in the tropical forests of Martaban E. of Toun- 

 ghoo ; Ava, Khakyen hills (J. Anderson). Fl. March ; Fr. May. 



3. A. coNCAYA, A. Juss. in Arch. Mus. Hist. Nat. 111. 509 ; Hf. 

 Ind. Fl. I. 420. 



Hab. Tenasserim, from Moulmein to Mergui, Fl. Fr. Apr. 



4. A. Helpertana, Kurz MS. 



Hab. Tenasserim, Moulmein district (Falc, Helf. No. 923.) Phanoe 

 (Wall. No. 1057 not in Cat.) Fl. Febr. 



Nearest to A. concava, from which it is distinguished by the different 

 leaves and structure of the retuse-narrowed samara-wings, the smaller 

 almost not wrinkled disk-lobes, etc. 



5. A. RoxBUEGHiANA, A. Juss. in Arch. Hist. Nat. III. 511 ; Hf. 

 Ind. Fl. I. 420. {Trioperis Indica, Willd. ; Roxb. Corom. PI. II. 32. t. 

 160 ; Sircea Indica, Roxb. Fl. Ind. II. 247). 



Hab. Ava ; (Tenasserim, Sal ween river, teste Hf.). 



6. A. HiESUTA, A. Juss. in Arch. Mus. Hist. Nat. III. 512. t. 17j 

 Hf. Ind. Fl. I. 421. {Hircea hirsuta, Wall. PI. As. rar. I. 13. t. 13). 



Hab. Ava, Taong-dong ; Prome hills. (Wall.) Fl. Fr. Aug. Nov. 



Doubtful species. 



1. A. BOTUNDTFOLIA, A. Juss. in Arch. Mus. Hist. Nat. III. 514 ; 

 Walp. Rep. V. 299. {KircBa rotundifolia, Roxb, Fl, Ind. II. 448). 



Hab. Chittagong (Roxb.) Fl. March, Apr. 



Hooker refers this species to his A, nutans, but the description agrees 

 better with A. tomentosa. 

 18 



