1876.] Knowledge of the Burmese Flora. 303 



Hab. Ava, Khakhyen Hills (J. Anderson). — Fl. Octob., Nov. 



NB. There is a leaf -specimen of another Prunus from the Khakhyen 

 hills in HBC. which differs from P. pseudo-cerasus, Ldl., only very slightly 

 in the smaller size and in the serrature of its leaves. 



3. P. Puddum, Roxb. ap. Voigt Cat. Hort. Calc. 200 (Qerasus 

 Puddum, Wall. PI. As. rar. II. t. 146 ; DC. Prod. II. 537 ; P. sylvatiea, 

 Eoxb. Fl. Ind. II. 501). 



Hab. Ava, Khakyen Hills. 



4. P. Mabtabaistica, Kurz in And. Eep. ed. 2. 37. (Gerasus Marta- 

 banica, Wall. Cat. 4902). 



Hab. Bather frequent in the tropical forests of the Andamans ; 

 Tenasserim. — Fr. May. 



Pygeum, Gsertn. 

 Conspectus of Species. 



* Ovary tawny villous. 



Leaves beneath more or less tawny villous, , , „,,P, arboreum. 



* * Ovary glabrous or sparingly hirsute. 



Glabrous ; nerves and veins conspicuous and deeply immersed so as to render the sur- 

 face of the leaves almost wrinkled, P. acuminatum. 



Young branchlets, petioles, and nerves beneath pubescent ; nerves and veins thin, little 

 visible, P. per simile. 



1. P. abbobeum, Endl. Gen. plant. 1250 in part. (P. parvijlorum, 

 T. and B. in Nat. Tydsch. Neerl. Ind. II. 309 ; Miq. Fl. Ind. Bat. 1/1, 361 ; 

 Polydontia arbor ea, Bl. By dr. 1105 in part). 



Hab. Tenasserim (Heifer 2053) ; Taipo mountains, at 4000 feet 

 elevation (Dr. Brandis) . 



2. P. acuminatum, Colebr. in Trans. Linn. Soc. XII. 360. t. 18, non 

 Wight Icon. ; Miq. Fl. Ind. Bat, 1/1. 162). 



Hab. Chittagong (Hf. and T. Th.). 



3. P. pebsimii/E, Kurz in Journ. As. Soc. Beng. 1872, 306. 

 Hab. Tenasserim (Heifer 2056). 



Allied to P. latifolium ; general appearance exactly that of P. Lam- 

 pongum, Miq. 



The genus Pygeum is so closely allied to the section Pygeopsis of 

 Primus with evergreen foliage as to make it difficult to keep it distinct. 

 Indeed, Pygeum and Pygeopsis, combined, stand pretty much in the same 

 relation to Prunus as Mriobotrya does to Pirus. 



Pirus, L. 



Conspectus of Species. 

 * Flowers usually by pairs from the axils of th-e leaves, or spuriously racemose 

 from the non-developement of young foliage. Ovary-cells many-ovuled. {Cy. 

 donia, Tourn.) 

 39 



