83 



312. COFFEA ABABICA, continued. 



/.-. Sugar in prismatic crystals obtained from coffee. 



Note. Mocba coffee " berries " are small and dark yellow ; Java and 

 East India, larger and pale yellow; the Ceylon and West India kinds Lave 

 a bluish or greenish-grey tint. Per. Mat. Med., vol. ii., pt. ii., p. 68. 



Chicory may be detected by its readily colouring oold water, and sinking 

 speedily in it. Under the microscope chicory is known by the numerous 

 pitted and spiral vessels of its tissue, and coffee by the absence of 

 these vessels, and the peculiar obliquely marked elongated cells found in 

 its outer coat. For fig. of these, see Lancet, January 6th, 1851, p. 22, 

 fig. 2. For fig. of plant, see BentUy and Trimen, Med. Plants, tab. 144. 



313. GARDENIA SPECIES. 



a. Fruit. 



\t>ti'. The fruits of 6. gramliflora, lucida, and radicans are used in 

 China to dye yellow. Specimens of the fruits of the two latter species 

 are in the collection of Chinese drugs. 



314. GENIPA AMERICANA, L. (Lana Tree.) 



a. Lana dye. 



Note. This is a bluish black dye prepared from the juice of the fmit. 

 The fruit is edible, and is known as the Genipap. See lientletfs Man. 

 Bot., p. 547. 



315. OLDENLANDIA UMBELLATA, Hortul. 



a. Root. (Chay Root.) 



Note. The bark of the root contains a red dye. This specimen was 

 presented by Messrs. Davy, MacMnrdo & Co., and was imported from 

 Madras. See Drury's U. Plants Ind., p. 240. 



316. UNCARIA GAMBIR, Roxb. 



a. Small circular moulded gambier. Two specimens 



Presented by Dr. Christison. 

 6. Ditto, of a paler colour. 



c. Terra japonica, in cubes, from Singapore. 



d. Gambier, in parallelepipeds. 



e. Cylindrical gambier. 



/. Small cubical amylaceous gambier. Presented by Prof. 



Guibourt. 



Note. The above specimens are those described by Pereira in his Mat . 

 Med., vol. ii., pt. 2, p. 154. Specimen b may perhaps be the "Amylaceous 

 Lozenge Gambier," there described, but it differs in having a starlike 

 mark on each lozenge. Specimens a are called in Dr. Pereira's catalogue, 

 " White or China Gambier." Specimens e and/ are inferior, and contain 

 starch. Sago starch is the kind usually found in gambier. For fig. of 

 plant, see Bentley and Trimen, Med. Plant*, tab. 139. 



RUBIACE.E. 



317. RUBIA TINCTORDM, L. (Madder.) 



a. Root. For fig., see Goebel und Kunze, pt. ii., taf. xiv., fig. 3. 

 6. Ditto, powdered. (Crop Madder.) 



