XX 
§ Ls opp. or alternate. 
* Ovary inferior. 
91. Santalaceae. Perianth 4—5-fid. Stas 4—5. Fr. 1-celled, 
1-seeded, indehisc. Partly root-parasites; nearly allied to Lo- 
ranthacece and like these with nude ovules (envelopes wanting). 
93. Aristolochiaceae. Perianth 3-fid or tubular, tongue¬ 
shaped. Stas 6, united to the style (Aristolochia), or 12 free 
(Asarum). Fr. 6-celled, many-seeded, capsular.—Ls cordate or 
reniform at the base. 
* Ovary free. 
0 Fr. separating into several l-seeded carpels. 
95. Euphorbiacese (incl. Acalyphace® and Buxace®). FIs 
monoecius or dioecious. Perianth 0 or (Mercurialis) with 3 di¬ 
visions. Styles 2—3, often 2-fid. Fr. consisting of 3 carpels 
which separate, at maturity, from the central persist, axis. 
37. Callitrichineae. FIs l-sexual, gen. furnished with 2 mem¬ 
branous bracts. Perianth 0. Sta. 1. Stigs 2. Fr. dividing at 
last into 4 cells (carps).—Water pis with opp. ls and axillary, 
scarcely visible fls. 
0 Fr. undiv., 1-celled, l-seeded. 
f Ls with (sometimes decid.) stipules. 
88. Polygonaceae. Stipules extending beyond the base of 
the petiole and surrounding the stem as a sheath. Perianth 
3—6-partite, green or coloured. 
96. Urticaceae (incl. Canabinese, Moreee). Stipules free or 
united among themselves. Perianth 3—6-partite, gen. green. 
Fls monoecious, dioecious or" 5 polygamous.—Pis varying much 
in form. 
31. Sanguisorbeae. Stipules united to the petiole. Perianth 
(caL) 4- or 8-partite.—Ls imparipinnate or palmati-lobed or 
-sect. See Rosace®. 
f Ls exstipulate. 
□ Seed exalbuminous. 
90. Laurineae. Stas inserted at the base of the perianth. 
Anthers each opening upwards by an ascending valve. 
89. Thymeleaceae. Stas inserted in the throat or tube of 
the perianth. Style 1. Achene dry or drupaceous. 
□ Seed albuminous. 
92. Elaeagnaceae. Stas and stylo as above. Fr. surrounded 
by the (now) fleshy perianth tube and appearing like a drupe. 
.—Lig. pis with scaly ls. 
45. Scleranthaceae. Stas as above. Styles 2.—Ls opp. Dis¬ 
tinguished from Paronychiacece in the want of cor. and stipules 
Embryo annular as in the 2 following. 
86, Chenopodiacese (Salsolace®). Stas inserted on the base 
of perianth or on the receptacle. Perianth herbaceous or fleshy. 
