369 
PART IIL-NATURAL HISTORY. 
ORIGINAL COMMUNICATIONS. 
Article I.— On the lEstivation of Flowers; and on Ir¬ 
regularity in Flowers. Communicated by J. Rennie, 
Esq. M.A., A.L.S., Professor of Natural History, King’s 
College, London. 
M. Adolphe Brongniart, has just published a curious paper in the 
Annales des Sciences Naturelles, upon “ The relative insertion of divers 
pieces of each floral whirl, and its influence on the regularity and irre¬ 
gularity of flowers.” He considers “a complete flower as formed by a 
succession of many whirls of different organs, nearly approaching at their 
points of insertion, the lower successively enveloping those above.” 
We cannot spare room for his minute, illustration of these curious views, 
but shall content ourselves with giving the table he has drawn up as the 
result of his enquiries. 
Relation of the JEstivation^ with the Regularity or Irregularity 
of the Flower. 
» 
Rhamneae, 
VALVARY .ESTIVATION. 
Form of the Corolla or Calyx. 
Calyx and Corolla, Regular. 
Ericinese, 
Corolla, for the most part, Regular. 
Campanulaceae, 
Corolla, 
Regular. . 
Rubiacese, (Stellated.) Corolla, 
Regular. 
Lobeliaceae and Goodenovieae, 
Irregular, divided. 
Compositae, 
Corolla, 
Regular and irregular, divided. 
Aristolochise, 
Calyx, 
Irregular. 
Tiliaceae, 
Calyx, 
Regular. 
Asclepiadeae, 
Corolla, 
Regular. 
Passiflorea?, 
Calyx, 
Regular. 
Rubiaceae, 
CIRCULAR. 
Corolla, 
Regular. 
Apocyneae, 
Corolla, 
Regular. 
Polemoneaceae, 
Corolla, 
Regular. 
Convolvulaceas, 
Corolla, 
Regular. 
Primulacea?, 
Corolla (for the most part) Regular. 
Cistiniae, 
Corolla, 
Regular. 
Caryophylleje, 
Corolla, 
Regular. 
Malvaceae, 
Corolla, 
Regular. 
Byttneriacea>, 
Corolla, 
Regular. 
VoL, I, No. 8. 
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