204 PACHYMA COCOS CHOO-LING. 



i860. dusty mass, formed by the disintegration of the inner bark. The 

 greater part of the interior of this specimen is of a dirty brown 

 colour, produced by a copious admixture of the particles of the 

 bark with the substance of the Pachyma, which latter is not so 

 pure and white as is usually the case. 



3. Choo-ling, Berkeley, Journal of Proceedings of Linn. Soc. 

 vol. iii. (1859), Botany, p. 102. 

 Synonyms of Chu-lim, Cleyer, Specimen Medicines Sinicce (1682), Med. 



Choo-liny. Sim ^ Na 2Q7j 



Czzu-lin, Tatarinov, Gated. Medicamentorum Sinensum 

 (Petrop. 1856), p. 17. 



^Kjfe ^1 (Choo-ling\ Pun-tsaou-kang-muh,cap.xxxvii. sect. -A 



(cum icone). 



(?) Hoelen, Kumph. Herb. Ami. xi. p. 123. 



PI. IX. figs. 10-13 represent specimens of this production, as 

 to which we have little to add to Mr. Berkeley's account (ut 

 supra). No botanical name has yet been proposed for it, which, 

 in the uncertainty that exists respecting its origin and nature, is 

 Microscopic not to be regretted. Its microscopic structure is similar to that 

 of Pachyma Cocos ; but the threads by which its substance is 

 traversed are much more interwoven and more branched, being 

 in fact almost reticulate : they have not the appearance of being 

 the mycelium of any fungus. We observe the same irregularly 

 shaped bodies as in the Pachyma ; but their dimensions, as 

 remarked by Mr. Berkeley, are smaller : like the Pachyma, they 

 are not rendered blue by iodine. In one or two specimens we 

 have noticed an abundance of doubly pyramidal crystals, and 

 we have also observed that the substance of the interior is much 

 more tough and leathery than in Pachyma, which latter is in 

 fact easily pulverizable. The specimens of Clwo-ling vary 

 much in size as well as in form. The largest we have (and 

 which is drawn in PL IX. Fig. 10) weighs 481 grains, and the 

 smallest 15 grains ; the average of 46 specimens is 86 grains. 

 All exhibit a thin, black, more or less shrivelled cuticle, closely 

 investing the uniform, corky, cream -coloured substance of which 

 the mass of the tuber consists. 



