200 
168 Hippocastanacee”: Very near to the Sapindacex and Aceraces. 
169 Sapindacee”: Close to the Hippocastanacese and Aceraces. 
Further, this family is related on one hand to the Meliaces, and on the other 
to the Anacardiaces. Its affinity with the Meliacez is to be found in the habit 
and anatomy, especially in the secretory cells; to the Anacardiaces, in the 
habit, and in the apotropous ovules. Through the Anacardiacesx, it is connected 
with the Burseracee ; through the Meliacew, it is allied to the Simarubaces 
and Rutaces. Further, it is sometimes compared with the Malpighiaces in 
its winged fruit; also to the Melianthaceee and Staphyleacese by the same 
fruit character. 
170 Sabiaceew®: In the exalbuminous seeds, the curved embryos, the 
reniform fruit, and the nearly apocarpous ovaries, the Sabiacesze are compared 
with the Menispermacee by Briumz, Miers, and Hooker et Tuomsoy, 
But BentoamM-HooxkeEr put them close to the Anacardiacesw and Sabiacez. 
171 Melianthacere”: Closely related to the Sapindacee, as is seen in the 
agreement of Berswma and Melianthus, in the zygomorphous flowers, in the one- 
sided extra-staminal discus, in the abortion of some corolla-lobes and stamens, 
and in the apotropous ovules ; also to the Staphyleacez, in the seeds with copious 
albumen, in the straight embryo and in the absence of the continuous scle- 
renchymatous ring. The Balsaminacese present some relation with this family 
in the median symmetry of their flowers, in the spur-like form of one of the 
sepals and in the deposits of potassium oxalate. JRADLKOFER refers to the rela- 
tion of the Zygophyllaceze and the Melianthaces, as he finds potassium oxalate 
in Bersama and Melianthus, which occurs in the same form as in the Zygophylla- 
cee, Harvey and Bartion, however, compare the family with the Saxifragacen. 
172 Balsaminacez”: The only reason for this family being referred to 
the Sapindales is the position of the micropyles and raphes. On the other 
hand, in general characters, it is closely related to the families of the Gera- 
nials, ‘such as the Malpighiacew, Trigoniacee, Vochysiaceew and Tropzxolacen. 
Whether it should be assigned to the Sapindales or to the Geraniales depends 
1) Le. IL—5, p. 275. 2) 1 ¢. TIL—5, p. 298. 
3) Nat. Pafam. IIL—5, p. 369. 4) 1 oe. IL—, p. 378. 
5) Nat. Pfl-fam. IIL—5, p. 388. 
