1823.] Analyses of Booh. S8t 



Article XII. 



Analyses of Books. 



Transactions of the Linnean Society of London, VoL XIV* 

 Fart I. 1823. 



{Concluded from p. 306.) 



VII. Account of the Lansium and some other Genera of 

 Malayan Plants, By William Jack, MD. Communicated by- 

 Henry Thomas Colebrooke, Esq. FRS. and LS. 



This paper commences with the following observations : — 

 " There are a variety of highly esteemed fruits, which may be 

 considered as pecuhar to the Malayan Archipelago, or what has 

 been not unaptly denominated India aquosaj and are not to be 

 found beyond its limits. Many of these are already well known; 

 but there are others which have not yet fallen under the obser- 

 vation of botanists, or are only to be found described in the 

 Ilortus Amhoinensis of Rumphius, which, though a work of 

 wonderful accuracy and research, stands in need of illustration 

 with reference to the progress that has been made in botanical 

 science since the period at which it was written. Among these 

 the Lansehf the Tampooi, and the Choopa, hold no undistinguished 

 place, and the following account of these plants will therefore 

 not be uninteresting. The first is already partially known from 

 Bumphius, and Mr. Marsden's History of Sumatra ; but its true 

 place and family have hitherto remained doubtful. To these I 

 nave subjoined descriptions of a few other genera from the same 

 interesting quarter, which appear to be new and to deserve 

 notice," 



LANSIUM. 



Decandria Monogynia. N. O, MeUace<z Juss. 



Calyx 5-partitus. Corolla 5-petala, petalis subrotundis. 

 Tubus staminiferus globosus, ore subintegro, antheris decem iur- 

 clusis. Ovarium 5-loculare, loculis 1 — 2-sporis. Stylus brevis, 

 I columnaris. Stigma planum, 5-radiatum. Bacca corticata, 

 .5-locularis, 5-sperma, uno alterove loculo tantum semen perfi- 

 ciente. Semina integumento exteriore pulposo sapido. Albumen 

 nullum; cotyledonibus inaqualibus peltalis. 



Arbor es, foliis pinnatisyjioribus racemosis, 



Lansium bomesticum. 



Langsat or Lanseh. Malay, Lansium. Rumph» Amb. i, 

 p. 151. t. 54. Marsden's History of Sumatra, pL v. p. 101. 

 Native of the Malay Islands. 



