302 ADUNANZA DELLA SEDE DI FIRENZE 



27. Heinricher e. — Beitràge zur Pflanzenterat. {Sltzungsher. 



d. K. Ah. a. WissenscJi., Wien., I, LXXXVII, 1883). 

 N. B. Vi si trovano osservazioni sulla divisione dei sessi. 



28. Hemsley W. B. — The nectar-cup of the Marcgraviaceae 



{Gardener's Chron., XIV). 



29. Henslow G. — On the fertilisat. of flowers by bees and 



oth. ins. (Journ. ofroy. hort. Soc. of London, VI, 1880). 



30. Heyer F. — Untersuchungen ùb. das Verhàltn. d. Gesch-- 



lecht. etc. (Halle, 1883). 



31. HiLDEBRAND F. — Aiidrogyne Blùthenst. bei Betida alba 



{TagU. d. Naturf. Vers., Salzburg, 1881). 



32. — — Ueb. einige Bestàubungseinricht. (Ber. d. deutsch. 



hot. Gesellsch., l, Berlin, 1883). 



33. Das Blùhen und Fruchten v. Antlmrium Scherze- 



rianum (Boi. Cenir., 1883). 



34. Jackson J. — Sarracenia purpurea (Boi. Gaz., 1881). 



35. Keller R. — Warming's und Engler's Ansichten ùb. d. Mala- 



coph. V. Philodendron hipìnnatifidum u. and. Araceen 

 (Kosmos, VII, 1883). 



36. Krads Gr. — Ueb. d. Bliithenwarme bei Arimi italicum 



(AbJiandl. d. Naturf.- Gesellsch., Halle, 1882). 



37. Kdnze R. — The fertilisat. of Opuntia (Bull. Torr. ì)Ot. 



Chilj., X, 1883). 



38. Lester Ward F. — Proter. of Rhexia vìrginica (ib., 



VIII, 1881). 



39. Magxus P. — Hygroscopische Hùllblatter (Kosmos, 1882). 



40. Meehan Th. — On the diurnal opening of flowers (Proc. 



of the Ac. of nat. se. of Philadelphia, 1876). 



41. — — Bering of corollas from the outside by honey-bees 



(ib., 1878). 



42. Sexual characters in Fritillaria atropuì'purea (Proc. 



of the Ac. of se. nat., Philadelphia, 1881). 



43. Coloured flowers in the Carrot (ib., 1882). 



44. Notes en Echinocactus (ib., 1883). 



45. Exsudation from flowers in relat. to honey-dew (ib.). 



46. Irritability in the flowers of Centaurea (ib.). 



47. Cleistogene flowers (Ball Torr. dot. Ciad, X, 1883). 



48. The stigma of Catalpa (The dot. Gaz., VIII, Lon- 

 don, 1883). 



