ifth class. 
17 
123 (62). Pis with a filiform, winding stem, without green Is 
Cuscuta. 392. 
— Pis with opp. green Is .... 124 
124. Two separate follicles, united only by the common 
stigma. See Cl. 16, 4* . . Vincetoxicum. 382. 
— Fr. a 2-valved capsule. (PI. glabr.) . . . 125 
125. Divisions of the rotate cor. bearing 2 ciliate glands at 
their base ...... Sweertia. 386. 
— Divisions of the cor. without glands . . 12O 
126. Stigmas decurrent on both sides of the ovary. Cor. 
rotate. Pleurogyne. 387. 
— Stigmas erect, divergent or reflexed Gentiana. 388. 
127 (61). Ligneous pis ...... 128 
— Herbs . . ....... 120 
128. Fr. a samara. FIs in lateral fascicles, appearing before 
the Is . Ulmus. 508. 
— Fr. a drupe. FIs solitary in the 1.-axils, appearing 
with the Is ...... Celtis. 509. 
129. Ls opposite ........ 130 
— Ls alternate ....... 132 
130. Ls exstipulate, subulate . . . Scleranthus. 205. 
— Ls with scarious stipules. See Cl. 5, 58 . . 131 
131. Cal.-lobes thick, cartilaginous, white lllecebrum. 202. 
— Cal.-lobes flat-concave, green . . Herniaria. 201. 
132 (129). Stipules forming a sheath round the stem 
Polygonum. 493. 
— Stipules 0. (FIs in clusters) .... 133 
133. Perianth berry-like when mature, juicy (red). (Ls not 
powdery, triangular-sagittate) . . . Blitum. 488. 
— Perianth not modified when mature, herbaceous, or 
only slightly fleshy .... Chenopodium. 487. 
134 (1). Ligneous pis. (FIs white or greenish) . . 135 
— Herbs ........ 138 
135. Cor. gamopetalous, superior or half-superior . 130 
— Cor. polvpet., inferior 
136. Ls imparipinnate 
— Ls undiv. or lobed 
137. Ls opp., imparipinnate * 
— Ls altern., undivided 
138 (134). Stem leafless. (Ls all radical) 
— Stem bearing ls (at least 1 leaf) 
139. Styles many. FIs greenish yellow 
— Styles 3—5 .... 
140. Ls petioled, with red glandiferous hairs. FIs white, in 
a spike. Drosera. 86. 
— Ls not petioled, glabr. FIs rose-red, in a terminal head 
surrounded by an invol. of many leaflets Armeria. 481. 
. 137 
Sambucus. 270. 
Viburnum. 271. 
Staphylea. 128. 
Rhus. 134. 
. 130 
141 
Myosurus. 6. 
. 140 
