185 
Series XVIII. Leitneriales 
55 Leitneriacee”: This family may be in some degree connected with 
the Hamamelidacese by the presence of the resin-ducts in the medulla-sheath. 
Series XIX. Juglandales 
56 Juglandaces”: Closely related to the Julianiacez and to the Myri- 
cacew. Also related to the Fagaces, in the arrangement of the flowers. 
Further, the family is comparable with the Anacardiaces in the exstipulate 
imparipinnate leaves. 
Series XX. Batidales 
57 Batidaceer”: Related to the Amarantaces and Phytolaccacex, and 
also to the Chenopodiacex. 
Series XXI. Julianiales 
58 Julianiacese”: See statement whder the Julianiales in the review of 
and critical remarks on ENGLER’s principles and his system in the present paper. 
Series XXII. Fagates 
59 Betulacee®: Closely related to the Fagacess in the inflorescence 
and in the parietal ovules. Also to the Myricaceew and Juglandacex. 
60 Fagacee™: Intimately connected with the Betulaces, also with 
the Myricaceze, Juglandaces and Julianiacee. 
Series XXIII. Urticales 
61 Ulmacew: ‘This and the two following families are closely inter- 
related. 
62 Moracee”: As above. 
63 Urticacese: As above. 
Series XXIV. Proteates 
64 Proteacew®: Somewhat approach the Thymelzacess and Lauracez. 
1) Nat. Pfl.-fam. Nacht. I. p. 117. 2) Nat. PA.-fam. II.—1, p. 22. 
3) Nat. Pfl-fam. DI—1, a, p. 120; Nachtr. UI. p. 105. 
4) Hemstey, W. B.—On the Julianiacee, in Phil. Trans. Roy. Soc. Lond. Vol. CXCIX., (B. 
253), pp. 190-193. 
5) Nat. Pfl.-fam. I1I.—1, p. 41. 6) 1 ¢, IIL—1, p. 52. 
7) 1. ce Ill—1, p. 69. 
8) Brnrs.-Hoozer, Genera Plantarum. II. p. 165. 
