LEG UMIN082E- C2ESALTIME2E. 



127 



Moldenhauera emargmata. 



ovules whose micropyles look upwards and outwards ; it is sur- 

 mounted by a tapering stjde, obtuse at the stigmatiferous apex. On 

 either side of the walls of the ovary is seen a pair of wings, 1 which 

 become more marked in the fruit ; this has not yet been studied at 

 maturity. D. orchidacea? the only known species, is a lofty tree from 

 the west of tropical Africa. Its alternate imparipinnate leaves have 

 two lateral stipules. The flowers, which in form and colour recall those 

 of certain Orchids, are collected in terminal racemes. 3 



Next to this we shall place Moldenhauera* referred by some to 

 Sclerolobiece, from which, however, it is distinguished chiefly by the 

 convexity of its receptacle, and by the hy- 

 pogynous insertion of the perianth and 

 androceum resembling that of Baudouiiiia, 

 Martia, and Duparquetia. The flowers are 

 pentamerous or tetramerous (fig. Ill)', 

 with valvate sepals, at first sticking to- 

 gether by their edges and then becoming 

 quite free down to the receptacle, unguicu- 

 late petals whose limbs are fringed and 

 lobed, auricled at the base, and much imbri- 

 cated in the bud, and two whorls of four or 

 five free stamens, superposed the one to the 

 sepals, the other to the petals ; the anterior 

 stamen, corresponding with the back of the 

 carpellary leaf, is enormously developed. Its 

 filament is incurved and ends in a fertile 

 or sterile anther with a thick connective 

 often covered with hairs. The other seven or nine have short erect 

 filaments, and flattened sub-basifixed anthers, which dehisce near 

 the apex by a cleft prolonged downwards to an extent varying with 

 the genus, but which may be very short, as in Cassia. The ovary 

 is superior sessile and multiovulate, surmounted by a slender style, 

 inflexed or involute in the bud, with a slightly dilated or capitate 



Fig. 111. 

 Flower (f ). 



1 The placenta corresponds to the groove, 

 separating the two posterior wings. 



2 H. Bn., loc. ciL, t. iv. fig. 1-4. — OUgo- 

 stemon pictus Benth., loc. cit. — Oliv., Fl. 

 Trop. Afr., ii. 2G7. 



3 In the lower part of each peilicel is an arti- 



culation, helow which it usually hears two ca- 

 ducous lateral bracts. 



4 SciiKAD., in Gcetting. Anzeig. (1821), 718, 

 ex DC, Prodr., ii. 488. — Endl., Gen., n. 6780. 

 — B. H., Gen.. 569, n. 319. — Dolichonema N 

 in Flora (1S21), 303. ' 



