LXX1II — 



776 Meehan (Thomas) : Contributions to the life historiés of plants. XII 

 (Proceedings of the Academy of natural Sciences, Philadelphia, 1897, 

 pp. 169-203). 



The fecundity of Heliophytum indicum. — The origin of the forms of 

 flowers. — Spines in the Citrus family. — Flowers and flovvering of La- 

 mium purpiireum. — Cleistogamy in Umbelliferae. — Rhytmic growth in 

 plants. — Pellucid dots in some species of Hypericum. — Honey glands of 

 flowers. — Yarying phyllotaxis in the Elm. — Spécial features in a study 

 of Cornus stolonifera Mx. — Folial origin of caulïne structures. — Pola- 

 rity in the leaves of the compass and other plants. — Hybrids in Nature. — 

 Origine and nature of glands in plants. — Nutrition as affecting the forms 

 of plants and their floral organs. — Some neglected studies. 



777 Mùller (Fritz) : Einige Bemerkungen ûber Bromeliaceen {FI., t. 83, 

 fasc. III, pp. 454-474, 2 pi.). 



778 Parmentier (Paul) : Recherches anatomiques et taxinomiques sur les 

 Onothéracées et les Halorag-acées {A. se. n., VIII sér., t. III, n° 2, 

 pp. 65-149, 6 pi.). 



779 Reinke (J.) : Untersuchungen ûber die Assimilationsorgane der Legu- 

 minosen. IV-VII (/./. ™. B., t. XXX, fasc. 4, pp. 529-614, 50 fig. dans 

 le texte). 



780 Rimbach (A.) : Biologische Beobachtungen an Colchicum auctumnale 

 {B. d. b. G., t. XV, fasc. 5, pp. 298-302, 1 pi.). 



781 Sargant (Ethel) : The formation of the sexual nuclei in Lîlium Mar la- 

 gon. IL Spermatogenesis (A. of B., Vol. XI, n° XLII, pp. 187-224, 

 2 pi.). 



782 Scott (D. H.) : On two new instances of spinous roots {A. of B., 

 Vol. XI, n° XLII, pp. 327-332, 2 pi.). 



783 Thury (M.) : Observations sur la morphologie et Torganogénie florales 

 des Passiflores {B. H. B., t. V, n° 6, pp. 494-503, 2 pi.). 



784 Weisse (Arthur) : Die Zahl der Randbluthen an Compositenkôpfchen 

 in ihrer Beziehung zur Blattstellung und Ernâhrung (/. f. w. B., 

 t. XXX, fasc. 4, pp. 452-483, i pi.). 



785 Weisse (A.) : Ueber Lenticellen und verwandte Durchlùftungseinrich- 

 tungen bei Monocotylen (B. d. d. G., t. XV, fasc. 5, pp. 303-320, 1 pi.). 



786 Wildeman (Emile de» : Une plante myrmécophile nouvelle [Scaphope- 

 talum Thomieri De Wild. et Th. Durand] {B. H. B., t. V, n° 6, pp. 521- 



5 2 5, 1 Pi-)- 



Cryptogames vasculaires. 



787 Calkins (Gary N.) : Chromatin-reduction and tetrad-formation in Pteri- 

 dophytes {B. T. C., Vol. 24, n° 3, pp. 101-115, 2 pi.). 



