308 OEIQINAL AETICLES. 



in tlie rest of the wood, and traversed by wide medullary 

 rays. Vessels of small diameter are scattered througli their 

 thickened prosenchyma. The structure of the wood-zone imme- 

 diately around the pith resembles that of the two plates. In 

 drying, the bark and pith have slightly separated from the wood, 

 and the medullary rays of the more vascular portions of the latter 

 are fissured. — Cissus hi/dropJwra. Graudichaud. Ann. So. Nat. ii. 

 Ser. vi. 143. Medullary rays of — Voyage de la Bonite. Bot. 

 Atlas, tab. 132-3. — Eecherches sur I'organographie, &c. des Vege- 

 taux, tab. xiii. 5. — Criiger, H. Bot. Zeit. 1S50. op. cit. 141. Obser- 

 vation on structure of Cissus. 



BALSAMiisnEAE. — Impcttiens. Kieser. Mem. sur I'organisation des 

 plantes, 1814, tabb. 11-12. 



PITTOSPORACEAE. — Pittosporum. Trevirauus. L. C. Phys. d. Ge- 

 wachse, 1835. i. tab. iii. 31-2. 



Anacaediaceae. — Pistacia, Bhus. Kieser. Mem. sur I'organisation 

 des plantes, 1814, tab. 16, 17. — Schinus, Rhus. Schiiltz, C. H. 

 Die Cyklose. Nova Acta, 1841, xviii. Suppl. ii. tab. xx.— Phus 

 typhinum. Eichard, A. Nouv. Elemens de Botanique, 1838. 109. 



Juglandeae. — Jitglans. Mohl, H. v. Bot. Zeit. 1855. 879. On 

 liber of — Schacht, H. Der Baum. 196. 



Celasteaceae. — Celastrus scandens. Mohl, H. v. TJeber d. Bau * * 

 der Eanken- und SchHngpflanzen. Tubingen, 1827, § 75. — Celas- 

 trus. Jussieu, Ad. de. Monograph des Malpighiacees, p. 117. A 

 climbing species from India, presents the woody axis parted into 

 three lobes, indicated externally by spiral grooxea.—PJuoni/mus 

 tingens. Lindley, J. Introd. Botany, i. 213. (with fig.) 



IxicusTEAE.— iZear. B. Mii'bel. Elemens de Phys. Veget. tab. xii. 2. 



Ehamnaceae. Criiger, H. Bot. Zeit. 1850. op. cit. 126. Observa- 

 tion on structure of Gouafiia. — Rhamnus. CarjDenter. The Mi- 

 croscope, 1856. 433. (figs.) 



Legtjminosae. Hartig, Th. Bot. Zeit. 1859. 109. Eccentric wood- 

 formation in. — Adesmia. linger, Frz. Beitrage z. Kenntniss d. 

 Parasit. Pflanzen, 1841, tab. ii. — Amorplia fruticosa. Ti-eviranus, 

 L. C. Phys. d. Grewiichse, 1835, i. tab. iii. ^^. — Apios. Duchartre, 

 P. Compt. Eend. 1853, t. 37. 1^0.— Astragalus. Mohl, H. v. 

 Untersuchungen iiber die Enstehungs-weise des Tragacanth- 

 gummi. Bot. Zeit. 1857. 33. Ann. Nat." Hist. ii. Ser. 20. 165. Ee- 

 ferring to structure of pith and medullary rays. — Aedemone 

 mirabilis. Hallier, E. Ueber ein neties Schwimmholz vom weissen 

 Nil. Bot. Zeit. 1859. 153. (With 1 plate.) The wood-cylinder is 

 formed principally of a lax, thin-walled, regular parenchyma, 

 traversed by isolated ligneous fascicles, and numerous complete 

 medullary rays. The vessels are either separately scattered in the 

 ligneous parenchyma, or, several together, are surrounded by 

 prosenchyma, forming fibro-vascular bundles. Numerous liber- 

 cells travcr^^e the cortical parenchyma, many of them ramified. — 

 Glycine sinensis. Jussieu, Ad. de, Monograph des Malpighiacees, 



