PHANEROGAMIA. 105 



et observations quoedam in species generis Evhiiis Auctorum 



earumque distributio in genera emendata et nova LinneaBd. xiv., 



pp. 387-454. 



Munch, Pfakbee. — Mittheilungen iiber einige Loranthaceen. — Flora, 

 I860, p. 465. 



Diagnoses of Visimm album, and Loranthus europceus, with ob- 

 servations on their general history, distribution, germination, &c. 



Nageh, C. — Beitrage zur wissensehaftlichen Botanik. Part II. — 

 Leipsic, 1860. 8vo. 192 pages, 8 plates, 4to. 



Movements of plants, right and left. Motion of cells and contents. 

 On the alleged occurrence of free or amorphous starch in Ornitho- 

 galum. 



1S t audin, Ch. — Revue des Cucurbitacees cultives au Museum, en 1859. — 

 Ann. Sc. Nat. (Bot.). Ser. iv., torn, xii., pp. 79-164, with. 3 plates. 

 M. Naudin prefixes to the descriptive portion of this memoir, ob- 

 servations upon the nature and disposition of some of the floral or- 

 gans of the Cucurbitaceae, in continuation of a notice previously pub- 

 lished by him (Ann. Sc. Nat. (Bot.) Ser. iv., torn, iv., p. 5, et seq.). 

 The so-called calyx-tube of the male flower, M. Naudin regards 

 as a campanulate or tubuliform dilatation of the extremity of the 

 peduncle ; in other words, that it is a true receptacle, comparable to 

 that of the rose, in the composition of which the calycine leaves take 

 no part. He states the theory of congenital union or coalescence of 

 the calyx segments to be, in the case of the Cucurbitaccye, quite in- 

 admissible. There is no trace of sutural lines on the " calyx-tubes" 

 of any known species of the order. The pentagonal form which it 

 sometimes assumes is due to the form of the peduncle, which is also 

 pentagonal, the angles being simply prolonged upon the " calyx- tube," 

 which is but a dilatation or expansion of it. 



The true calyx, according to M. ISTaudrn, consists but of the five 

 lobes, which in some species are reduced to imperceptible teeth, and 

 in others are strongly developed. In certain varieties of Oucurlita 

 maxima they are entirely wanting, the flower consisting only of 

 corolla and the staminal fascicle. M. Naudin leaves the question 

 open as to whether the tubular lower portion, when present, of the 

 " corolla," may be, in like manner, a modified process of the recep- 

 tacle, in which case the lobes of the upper portion would answer to 

 the true petals. The author confirms his previously published views 

 on the structure of the stamens in Cucurbitaceae, by further examina- 

 tion of species of Lujfa, in which the two complete and bilocular 

 stamens are divided to their base. In these plants the filaments do 

 not alternate with the five corolla-lobes, but are in pairs ; the fila- 

 ments of each pair being collateral, and inserted upon the same point 

 of the receptacle. An additional proof that the bilocular stamens of 

 the Cucurbitaceae are simple, but complete, is the fact that there ex- 

 ist species having really five stamens, alternating with the corolla- 

 lobes. This return to the usual symmetry is presented by a plant 

 not yet clearly determined, but probably belonging to the genus 



VOL. I. N. H. E, P 



