PASSIFLORE^E 583 



sperm, straight with broad foliaceous cotyledons, and an 

 elongated radicle. 



Basananthe is exceptional in having only three ovules in 

 the ovary. In some species of Carica the ovary is five-celled 

 by the development of spurious septa. A curious case occurs 

 in Ceratiosicyos where the stipitate capsule is elongated, 

 terete, membranous and greatly resembling a siliqua. Passi- 

 flora, Tacsonia and several other genera have also a stipitate 

 ovary and fruit resembling that of the Capparidese, where the 

 capsule is also siliquiforni in a number of genera. 



A good type of the Order is furnished by Passiflora macro- 

 carpa (fig. 373) which has a greatly thickened testa slightly 

 indented and pushing blunt points into the endosperm. There 

 is a groove in the edges of the seed and the raphe passes along 

 it on one edge. 



The cotyledons are broadly oblong-oval, slightly inclined 

 to be cordate at the base. Tacsonia ignea (fig. 376) differs 

 chiefly in the relatively smaller size of the embryo, the 

 absence of a groove on the edges of the seed, and in the testa 

 being rather deeply depressed in places but hardly indented. 

 The cotyledons are trinerved. The seeds of Tacsonia tubiflora 

 are obovate, rather thickened, not grooved at the edges, but 

 deeply indented internally, and running into the endosperm. 

 In other respects it agrees with the two former species. 



Seedlings. The prevailing types of cotyledons belonging 

 to different genera and species of the Passiflorese vary from 

 oblong to oval, and are foliaceous, entire, or slightly emar- 

 ginate, three- or faintly five-nerved, reticulate and shortly 

 petiolate. A fairly representative type of the Order is that of 

 Passiflora caerulea (fig. 375). The first eight leaves are entire 

 and vary from broadly ovate to the eighth which is lanceolate. 

 From the ninth to the eleventh inclusive they are palmately 

 tri-nerved and -partite. The ultimate leaves are five- to 

 seven-lobed with linear lobes. In Passiflora Leschenaultii 

 the third, in Tacsonia ignea the second, and in T. Van 

 Volxernii the first leaf is already trilobed. P. rnacrocarpa 

 (fig. 374) has broadly or roundly oblong much reticulated 

 cotyledons. All the leaves are entire and oblong-ovate from 

 first to last. The cotyledons of P. Leschenaultii are inclined 



