241 



Reviews of Foreign Literature. 



Conspectus FiorcB Europaece. Stipplementum II, Pars altera, C. 



R Nyman. (8vo., pp. 225-404, Orebro, 1890). 



Tills concluding- part of a most extensive and important piece 

 of work includes additions and emendations to the preceding 

 pages, notes, observations and a complete index to the Supple- 

 ment. It embraces the additional matter from Boraginea^ to Pterin 

 dopliyta. A very considerable number of species have been 

 added to the Flora of Europe since the completion of the Con- 

 spectus. Locahties for rare or critical species are cited in 

 detail, and references given for descriptions of all the additional 

 species. It would have been exceedingly interesting to have had 

 a statement of the number of species recognized in the work, in 

 order to compare it with those known from an equal area of 

 America lying in the same latitudes. 



Monographic der Gattung Orobanche. Dr. Gunther Rittcr Beck 

 von Mannagetta. (Bibliotheca Botanica/Heft 19), 

 This is an exhaustive monograph of these interesting root- 

 parasites, including chapters on the history of the genus, its mor- 

 phology, anatomy and physiology, the host-plants of the various 

 species and their geographical distribution. Then follows the 

 critical description of the eighty-three species recognized, nine of 

 which are American, included in the subgenera Aphyllon, My- 

 zorrhiza and Kopsiopsis. The first of these includes (i) 0, nni- 

 flora ^ L. {A, ^^miflorum^ Gray) and (2) (9. fascicnlata (Spreng.) 

 Nutt. {A, fasctculatiun, T. & G. The second (3) O, Californica, 

 C. &. S. {A. Californicuni^ Gray); (4) O, Grayana, Beck {/I, 

 comosuni. Gray; O, comosa^ Ilook. not Wallr); (5) (9. Liidovi- 

 ciana^ Nutt. {A, Ltidoviciana, Gray) and under this A. Coopert, 

 Gray and A, mnltiflora, Nutt. are placed as varieties; (6) 0. 

 Chilensis (Phil.), Beck, the only South American species; (7) O. 

 bulbosa, Beck {A. tuberosum, Gray, not <9. tuberosa, Hook); (8) 

 O.pinoruni, Gi^ycv [A. pinctonnn, Gray) which Di'. Beck has not 

 seen and regards as imperfectly described. The third subgenus 

 includes (9) O. Hookcri, Beck, [Boschniakia strobilacca, Gray). 



N. L. B. 



Recherche s expJrnnentales sur les Modifications dcs Feuilles cJiez 



