OLIVEE ON THE STEM OF DICOTYLEDONS. 327 



1828, xvi. 31 (fig.)— Ti-evir anus, L. C. Pliyslol. d. Gcwachse, 

 1835, i. tab. iii. 34-6.— Mohl. H. v. Bot. Zeit. 1855, 880. On 

 liber of. — Fagus, Carpitnis, Quercus. Hartig. Bot. Zeit. 1859, 94, 

 Ql. — Fagus Porsteri. J. D, Hooker, ilora Antarctica, i. 300, 

 t. cvii. 1 L and 12.— Corijlus. Carpenter. The Microscope, 1856, 

 434 (fig.) — Corylaceae, several genera. Scliacht, H. Der Bauin, 

 191-8. — Henfrey, A. Micr. Diet. ' Wood.' {Fagus, Carpimis, 

 Quercus). 



Betulaceae. — Betula. Link, H. T. Elementa Phil. Bot. 1837, 

 tab. iv. 1. — Betula alba. Link, H. P. Icones Anat. Bot. 1837, 

 fasc. i. vi. 4-15. — Schulz, C. H. Die Cyklose. Nova Acta. 1841. 

 xviii. Suppl. ii. tab. xxxiii.— Mohl. H. v. Bot. Zeit. 1855, 880. On 

 liber of. — Henfrey, A.Microg. Diet. (Salix, Populus, Hazel, Alder) 

 ' Wood,' — also Schacht, H. Der Baum, 198. — Salix (vide note 

 p. 25.) Unger, Fr. TJeber d. Ban, &c. des Dicotyiedonen-Stammes, 

 St. Petersbiu-gh, 1840, Absch. viii. 



Lafbaceab. Nees v. Esenbeck. Systema Laurinearum, 1836. Brief 

 mention of wood structure, p. 6. — Laurus Sassafras. Kieser. 

 Mem. surl'Organisation des Plantes, 1814, tab. xiii. — Hernandia. 

 Schacht, H. IJeber eigenthiimliche * * * Erscheinungen in den 

 Verdickungs-schichten gewisser Holz-zellen. Bot. Zeit. 1850, 697. 

 On the wood cells ot— Cassyta. Mohl, H. v. Ueber d. Ban * * * 

 der Eanken- und Schlingpflanzen. Tubingen, 1827, § 75. — 

 Chatin, A. Compt. Eend. 1856, tab. 42, 329, Anatomie Comp. 

 des Vegetaux, Livr. iii. 27, with figs. Modifications of structure 

 are described in Cassgtha hrasiliensis, C. casuarinae, C. filiformis, 

 C. glabella and C. trijlora. UnroUable spiral vessels appear to be 

 wanting, except in the last two species. Medullary rays and 

 liber are absent. 



MoNiMiACEAE. Tidasne, L. E. Monographia Monimiacearum. 

 Ai'ch. Mus. d'Hist. Nat. viii. 1855, 282. The slender prosen- 

 chyma cells are irregularly dotted, and traversed by vessels of 

 very variable diameter, slit-marked or dotted. 



Santalaceae. — Thesiacees. Chatin, Anatomie. Comp. d. Yegetaux, 

 Li^r. 9% 297 (with plates). The stem-structure is described in 

 detail in Thesium Immifusum and 8 other species, in Comandra, 

 Fusanus, Leptomeria, Arjona, Quinchamalium, Choreirum, JVa- 

 nodea, Osyris, Henslovia, 5 spp., Santalum, 4 spp., Mida, Plioi- 

 acarpos, Pyrularia {Sphoerocarya), Myoscliylos, Suchleya, An- 

 thobolus, Exocarpus. Nanodea differs anatomically from other 

 Santalaceae. Its ligneous system does not form a continuous 

 zone, but is usually very irregularly broken up into segments by 

 interposed parenchymatous processes. It consists (1) of dotted 

 prosenchyma radially disposed ; of (2) other fibrous cells, some 

 square, some compressed in section, also radially disposed, and 

 separating the former ; and (3) a few dotted vessels. Spirals are 

 absent (?) In BucMeya the fibro-cortical bundles, in an annual 

 stem forming almost a continuous circle, subsequently become 



