326 ORIGINAL ARTICLES. 



Nat. ii. Ser. ii. 157. The wood is destitute of concentric zones, con- 

 sisting chiefly of dotted tubes, traversed by a few annular or 

 reticulated vessels, and disposed in plates separated by broad, 

 radial, medidlary processes. — Lindley, J. Veg. Kingdom, 295. 



Phytoceekeai;. — P. gigantea. Griffith, W., in Wallich's ' Plantae 

 Asiaticae Eariores,' iii. 11, pL 216, and in Grriffith's ' Icones,' 

 ccccxc. No description farther than references to plates. The 

 'medullary rays,' so-called, are represented as symmetrically 

 disposed, enormously thick, and at equal distances apart ; in a 

 young stem about 9 in number. They are composed of elon- 

 gated, tapering cells, traversed by barred vessels. The wood is 

 very porous, from numerous, wide, slit-marked ducts immersed 

 in its dotted prosenchyma. Distinct concentric zones form in 

 the wood, each with its own ' rays,' which are independent of 

 those of the adjoining zones. — P. macrocarpa. Grriffith, Notulae, 

 iv. 324.— Treviranus Bet. Zeit. 1847, 400. Ann. Nat. Hist. Ser. 

 ii. i. 131. (Report by Henfrey.) Jvissieu's arguments do not dis- 

 prove the view that the plates projecting inwards from the bark- 

 layers originate in the liber. — P. palmata. A. de Jussieu. Monog. 

 des Malpighiacees, 122. The soHd, radially-disposed plates 

 (regarded by Griffith as medullary rays) M. Jussieu considers 

 to belong to the wood system, and that they form the innermost 

 portion of a second ligneous ring which would develop concen- 

 trically, exterior to the first. — Lindley, J. Introd. Botany, i. 211. 

 with fig. — Mettenius, on Structure of Fhytocrene. Beitrage zur 

 Botanik, 1850, p. 50. — Mohl. H. v. Einige Andeutungen iiber 

 den Ban des Bastes. Bot. Zeit. 1855. Referring to the vertical 

 plates traversing the wood, which the author considers to corre- 

 spond to the liber-plates of Bignonia. — Eadlkofer, L. TJeber das 

 anomale Wachsthum des Stammes bei Menispermeen. Flora, 

 1858, 206. 



Lacistemaceae. Schnitzlein in Martins, ' Flora Brasil.' p. 280. 



Platanaceae. Link, H. P. Pecherches sur 1' Anatomic des Plantes. 

 Ann. du Museum, 1812, xix. 340, with figs. — Platanus orientalis. 

 B. Mirbel. Elemens de Physiologie Vegetale, 1815, tab. ix. 1. 

 — P.occidentalis. Gray, A. Introd. Botany, 1858,37 (figs.) — 

 Henfrey, A. Micr. Diet. ' Wood,' and Elements of Botany, 

 534 and fig.— Schacht, H. Der Baum, 200. 



Coeylacea-E. — Quercus. Kieser. Mem. sur TOrganisation des 

 Plantes, 1814, tab. xiv.— Mirbel. Mem. du Museum, 1828, xvi. 

 (fig.) — Buzareingues. Ann. Sc. Nat. xxx. tab. vii. 1, viii. & ix. 

 — Mohl, H.v.Ueber die EntA\dckel. des Korkes, &c., 1836.— Du- 

 trochet, I'lnstitut. No. 192.— Bischoft; Lehrbuch, tab. ii.— Mohl. 

 H. V. Ueber den Wieder-ersatz des Korkes bei Q. Suher. Bot. 

 Zeit. 1848, 361. — Hoftinann, H. Zur Kenntniss des Eichenholzes, 

 Flora, 1848, 369, 1 pi. A detailed account of the general and 

 minute structure of the pith, wood, medullary rays, and cortical 

 layers of Q. pedunculata. — Fagus. Mirbel. Mem. du Museum 



