300 OKIGINAL ARTICLES. 



prosenchyma in alternating, concentric zones as in Dicotyledons 

 generally. —Winteracece. Miers, J. On the. Ann. Nat. Hist. 

 Ser. iii. 2, 34?. Dotting of the vessels. — Henfrey, A. Micr. 

 Diet. "Wood:'— lllichm. Gray, A. Introd. Botany, 1858,43. 

 Dots on wood-cells (fig.)- — The wood presents the normal dicoty- 

 ledonous arrangement of tissues. The prosenchyma is minutely 

 dotted longitudinally, on, at least, surfaces transverse to the 

 medvdlary rays. (D.O.) 



Ajs'onace^. — Martins, " Flora Brasiliensis," 64. Brief notes on the 

 wood of Anona crassijlora and other species. — Ci/athostemma. 

 Griffith. NotulfB iv. 708. 



ScHizAKDKACEJE. — Lindley. J. Veg. Kingdom, 305. — Griffith, Notulse, 

 iv. 715. — Kadsura Roxburghiana. The prosenchyma cells bear 

 longitudinal rows of minute, oblique, slit-like dots. A faint circle 

 surroiuids these, due to very narrow, lenticular, intercellular 

 cavities, as in MamamelidecB, &c. (D.O.) — Sphcerostema. Lindley, 

 J. Introduction to Botany, 1 p. 06, and PI. ii. 20. Markings on 

 wood cells. 



Lardizabaleje. — Stauntonia latifoUa. Lindley, J. Introd. Botany, 

 i. 213. With curved medullary rays, (iig.) 



Menispermace^. — Gaudichaud. Eecherches sur I'Organographie, 

 &c., des Vegetaux, tab. xviii. 13. — J. Decaisne. Sur les Lardiza- 

 balees, Arch, de Museum, 1839, i. 143, with figs. — Menispermum 

 canadense, p. 154. Descriptions of young and adult stems are 

 given. In the latter the original number of vascular bundles is 

 found to have undergone no increase, the 18 — 23 fascicles which 

 completed the circle in the first year, have received addition 

 chiefly to their outer extremities and assumed a spathidate 

 outline in section. The liber bundles of thick-walled, tapering 

 cells, on the other hand, have not increased, and are found 

 isolated and opposed to each of the wood-wedges. The wood is 

 formed of dotted tubes varying in diameter ; where they border 

 upon the pith, annidar and unreliable spiral vessels occur. — Cocculus 

 Icmrifolius, p. 157. Presents up to a certain period an arrange- 

 ment of parts similar to that of M. canadense, the original 

 vascular bundles continuously progressing outwards and the 

 liber remaining unchanged. The vascular wedges do not increase 

 proportionately in breadth with their growth in length, so that the 

 medullary rays become progressively larger. After some years 

 the wood fascicles cease growing, and in the cortical cellular tissue 

 originates a second series of bundles, similar to the first formed, 

 excepting in the absence of spiral vessels at their inner side and of 

 liber externally. After these bundles have attained their max- 

 imum development they, in tvirn, cease to grow, and a third series 

 forms in the parenchym of the bark and so on. — Cissampelos 

 Pareira, p. 204. Analogous in structure to Cocculus. The first- 

 formed zone of wood alone possesses liber. Between subsequently 

 formed zones tliere is a thin layer of thick-walled cellular tissue, 

 quite distinct from liber.— J. D. Hooker and T. Tliomson. Flora 



