205 
and in the presence of albumen, it is very near the Passifloracese ; but in 
the gamophyllous corolla, it approaches the Cucurbitacem. 
; 207 Caricacese’?: In the structure of their ovaries, the Caricaces are 
closely related to the Passifloracess; but in the structure of the ovules, they 
are related ,to the Cucurbitacess (Van TrnGHEM). 
208 Loasaceze”: Dz Canporze refers this family to the Calyciflorees on 
account of the rudiments of the stamens, and places it near the Oenotheracess 
and Portulacacez ; at the same time, he gives as the near kin of the Loasa- 
cee the Passifloracese and Turneraces on one side, and the Papaveracese and 
Cucurbitacess on the other. BrnTHamM-Hooxer regard the Loasaces as a re- 
lation of the Begoniaces, Cucurbitacess and Dipsacaces, while Ercnuer finds 
in the Loasaceze a type midway between the Passifloracee and the Myrti- 
floree. LinpLEy, however, affirms its relation to the Cactaces. It is also near 
the Turneraceee. At any rate, it cannot be denied that there exist many 
points of resemblance between the Loasaceze and the Begoniacex, especially 
in the structure of the seeds. 
209 Datiscacee”: This family was at one time placed close to the 
Saxifragacese, but at another, near the Cucurbitacese. BAILLON regards it as 
a transitional form between the Piperacese and the Urticacee. ‘LinpLEY, and 
Benru.-Hooxer put the Datiscaces near the Begoniacee, while DE CanDoLLE 
brings the family close to the Loasaces. Its intimate relation to the Bego- 
niaceze is particularly referred to in the following lines. 
210 Begoniaceze”: ‘These are closely connected with the Datiscaces, as 
can be seen in the inferior ovary, in the manner of the dehiscence of the fruit 
and in the shape and structure of the seeds and seedlings. On the other hand, 
the intimate relation between the Begoniaces and the Cucurbitacese is incon- 
testable, as both families agree perfectly in the unisexual flowers, in the in- 
ferior ovaries, in the connate stamens, in the cystolith, in the shape and 
nerves of the leaves, in the placentas, and in the seeds. The Saxifragacez 
may be regarded as kin of the Begoniaces, as the two families agree in the 
1) lc. IIL—6, a, p. 98; Nachtr. TIL p. 235. 
2) 1c. IIL—6, a, p. 106. 
3) Nat. Pfl.-fam. IIL.—6, u, p. 152. 4) Nat. Pfl-fam. TII—6, a, p. 133. 
