Morphologie, Teratologie, Befruchtung, Cytologie. 19 



Costerus, J. C, and J. J. Smith, Studies in tropical tera- 

 tology. (Ann. Jard. bot. Buitenzorg. 2'^^ Serie. XIV. p. 83—94. 

 1916.) 



This continuation of the authors' studies in tropical teratology 

 brings a great many descriptions and good figures of cases of tera- 

 tological phenomena, collected by various collaborators and descri- 

 bed by Costerus. 



The paper mentions cases of bladebifurcation in Cyathea {orien- 

 talis Moore?), vivipary in Aspleniunt viilcanicum BL, stembifurcation 

 in Saccharuni officinarum L., folioles of normally bipinnate leaf 

 grown in Caryota sp., a two-celled coconut {Cocos nucifeva L.), three 

 Sterns sprouting from one nut and premature flowering (paedoge- 

 nesis) in the same species, Richardia africana Kth with two spathae 

 at one peduncle, Eucharis grandiflora Planch. with perfectly penta- 

 merous flower, Hedychintn covonarhini Koen. with a third lobe be- 

 tween the lobes of the bifid labellum, Burhidgea schisochüa Boerl. 

 (top of the lip with three lobes instead of two), Globba maculata BL 

 (one of the alae with an anther-like appendage), Paphiopedüuni 

 glaucophyllunt J. J. S. (flower deformation), Kuhlhasseltia papuana 

 J. J. S. (deviating flower), Hetaeria aistata Bl. (deviating flowers), 

 Calanthe eniarginata Lndl. (pseudo-dimery), Calanthe varimts J.J.S. 

 (branch springing from peduncle), Psenderia foliosa Schltr. (weak 

 stem with terminal inflorescence), Dendrohimn undulatum R. Br. 

 var. gracile J, J. S. (synanthy), Dendrohiiini Mhhelianuin Gaud. 

 (liplike appendage at column), Bulbophylliim apodum Hook. f. (pseu- 

 dobulb with two leaves), Grarnniatophylhim speciosum Bl, (different 

 malformations of flowers), Aerides odoratum Lour. (the same), Pha- 

 laenopsis amabilis Bl (the same), Arachnis {Renanthera) Lowii Rchb. 

 f. (normally two different of flowers, differing in shape, colour and 

 odour; the specimen mentioned in this paper bears a flower of which 

 some of the parts of the perianth show colour and shape of the 

 lowest flower and at the same time the characteristics of the higher 

 ones), Kalanchoe pvolifera {Bryophylliim, proUferuni Bowie) with 

 pitcher-building apices of leaflobes in the same way as in Codiaeum 

 variegatiim var. appendictilatuni , Rosa hybrida wita cupshaped ena- 

 tion from the midrib on the back of the leaf, Sida rhonibifolia L. 

 (fasciation of stem), Melastoma {malabaricum L.?) with leaf-devia- 

 tions, Vaccinimn dialypetalum J. J. S. (formerly described as a cho- 

 ripetalous coroUa, but now an identical twig has been found up 

 with sympetalous flowers; the first one is abnorm, the second the 

 normal structure), Saintpaullia ionantha Wendl. (flowers with 3 and 

 5 stamens instead of 2.), Wedelia biflora DC. with prolification of 

 flowerheads. 



In accomplishing a formerl}^ given list of witchbrooms (Ann. 

 Jard. bot. Buit. 2m6 Serie. IV. p. 175) the writers mention: Aspara- 

 gus (racemosus Wild.?), Alchornea rugosa Muell. Arg., Villebnmnea 

 rubescens Bl. var. sylvatica J. J. S., Aglaia odorata Lour. forma chi- 

 nensis, Pornetia pinnata Forst, (in this species the leaf has been 

 affected), Melastoma sp., and Litsea javanica Bl. 



M. J. Sirks (Bunnik). 



Goebel, K. v.. Zu Jacques Loeb's Untersuchungen über 

 Regeneration bei 5rvo/)/z>'//i/m. (Biol. Cbl. XXXVI. p. 193— 204. 

 1 Abb. 1916.) 



Verf. gibt zunächst einen Ueberblick liber den Stand des Bryo- 



