MALVACE&. 79 



with five deep divisions, valvate or reduplicate in the bud. The 

 petals are the same in number and alternate. They are composed of 

 a slender claw surmounted by an elongated and valvate induplicate 

 limb. Between these two parts is found a more or less cucullate 

 dilatation with a biauriculate base, the concavity turned inwards and 

 hiding a fertile stamen, while the edges of the hood adhere to a 

 glandular surface which takes the place of an extrorse cell on each 

 side of the sterile stamens. The androceum is formed of ten 

 monadelphous pieces of which five are sterile, thick, tapering or 

 truncated at the summit, glandular without towards the edges. They 

 correspond to the divisions of the calyx ; 

 while the five fertile stamens superposed to the Saettaeria i 

 petals, are formed of a small filament detached t l h 



below outside the common circumference of the 

 androceum, and of an anther, articulate at the 

 base with two lateral or extrorse cells, separated 

 by a connective generally pretty large, and 

 each dehiscing; by a longitudinal cleft. 1 The 



, . Fig. 121. 



gyna3ceum is free, superior, and formed of a Fruit ' 



sessile ovary with five oppositipetalous cells, 



surmounted by a style, whose stigmatiferous apex is divided into five 

 branches, or five lobes, sometimes very short. In the internal 

 angle of each cell is found a placenta, supporting two collateral or 

 almost superposed, descending, incompletely anatropous ovules with 

 the micropyle turned upwards and outwards. The fruit is a 

 spherical capsule or nearly so, covered with prickles (fig. 121), whose 

 cells detached from the axis afterwards open longitudinally by their 

 interior edge. The seeds, which are often solitary in each cell, en- 

 close under their thick coats a very voluminous embiwo with conical 

 inferior radicle surmounted by a cylindrical tigella, occupying 

 the axis of the seed. Round this tigella the cotyledons are hori- 

 zontally rolled, being refiexed upon it, surbased, formed of two very 

 long lateral lobes which are triangular, similar to wings and become 

 spirally convoluted upon each other. There are some fifty Buetlncriaa 2 



1 M. H. Mohl (in Ann. Se. Nat, sew 2, iii. 2 Atjbl., Guian., t. 96.— Cat., Diss., v. 290, 



334) described the pollen grain as " a triangular t. 148-150. — Jacq., Hort. Sch&nbr., t. 46. — 



prism, upon each lateral surface of which is an H. B. K., Nov. Gen. et Spec, v. 314, t. 481 a, 



oval papilla placed longitudinally; in water, 481 b. — A. S. H., Fl. Bras. Mer., i. 138, t. 



spherical with three papilla? (B. heterophylla)." 27-29. — Pohl., PI. Bras., ii. t. 145-154. — 



