PIIANEKOGAMIA. 469 



in Manna. The second section is devoted to resins and balsams 



which are shown in part to be of similar origin. The third to 



intercellular substance and cuticle. 

 WiiiLEBKAifD, p. V. — Jakttagelser rorande verkan af Secale cornu- 



tiom. Act. Soc. Fen. vii. p. 1. 

 WiLLKOMM, M. und J. Lange. — Prodromus Florae Hispanicae, 



Vol. i. part 1. Stuttgardt, 1861. Filices to Melanthaceae {Ery- 



throstictus). 



No new genera appear to be described. 

 AViMMEE, F. — SaHcologische Beitriige. Bresl. Abh. 1861. i. 2. 

 WiNKLEE, A. ~ Nachtrage und Bemerkuugen ziu* schlesischen 



Flora. Verh. Bot. Ver. Brandenb. Hft. ii. p. 107. 

 WossiDLO, P. — Ueber die Structiir der Juhaea sjiectabUis. Ein 



Beitrag zm- Anatomie der Palmen. Nova Acta, 1861. xxviii. 



Abh. V. With 5 plates. 



The author appends the following conclusions : — 



1. The form of the terminal bud in Palms with undeveloped 

 internodes is never convex, though often flattened, and indeed 

 concave, according to the greater or less intensity of growth. 



2. The structure of Jubaea spectahllis essentially agrees with 

 that which H. v. Mohl has represented as characteristic of the 

 Cocos type of stem structure. 



3. There is distinguishable in the stem of J. spectabilis, as 

 also more especially in the Cocos type, a so-called bast-layer 

 mider the rind which surrounds the proper woody-mass or pith. 



4. The vascular bundles of the bast-layer consist solely of 

 prosenchyma. 



5. They do not enter the interior of the stem, but rim through 

 their entire length, to their entrance into the leaf, within the 

 bast-layer. 



6. They form the principal portion of all the vascidar bundles 

 entering the leaf. 



7. Between the woody-mass and the bast-layer under the 

 terminal bud is a Cambium zone in which the formation of new 

 tissues of the stem takes place. 



8. All the vascular bundles originate in this Cambium-layer, 

 including the fascicles of the bast-layer, which are consequently 

 not, as Schacht maintained, branches of the vascular bundles of 

 the adventitious roots. 



9. The difterence in the course and anatomical composition 

 of the liber-layer and the central vascular bundles is explained 

 by the origin of the former on the outer side and of the latter on 

 the inner side of the Cambium zone. 



10. Moreover the bast-fascicles on their entrance into a leaf 

 are transformed in great measure into complete vascular bundles- 



Zollinger, H. — Quelques observations sur I'Histoire naturelle de 

 File de Madoura. (To the east of Java.) Journ. Bot. Ned, 

 , 1861. 130. 



