162 Phylogenetic System of Flowering Plants. 
! 165. Rubiaceae (excluding Silvianthus ! and Carlemannia ! 
Near 163 and 164, descended from 21 ? ). 
b. Tubiflorae (in the proper sense; excluding Convol- 
vulaceae ! ). 
166. Bignoniaceae (including Paulownia ! and Wightia. 
Near Hippocastaneae, 163! and 165? descended from 
21 ). 
! 167. Oleaceae (reduced Bignoniaceae). 
168. Myoporaceae (excluding Zombiana ? and Oftia ! Reduced 
Crescentieae ? ). 
169. Pedaliaceae (including Martyniaceae ; descendants of 
166). 
170. Acanthaceae (including Zenkerina ! Same origin). 
171. Verbenaceae (including Phryma ? and Buddleioideae ! 
Same origin). 
172. Labiatae (descendants of 171). 
173. Scrophulariaceae (including Plocosperma ? Desfon- 
tainea! Columellia! Oftia? Tetrachondra! Globula- 
rieae ! Plantagineae ! Lentibularieae ! Orobancheae ! ; 
excluding Paulownia! Wightia! Brookea ! Uroskinnera, 
Dermatobotrys! Ourisia (partly)! Rehmannia! and 
Zenkerina, Descendants of 166). 
174. Gesneraceae (including Brookea! Uroskinnera, Derma¬ 
tobotrys ! Ourisia (partly)! and Rehmannia! Close to 
173, descended from 166). 
175. Solanaceae (excluding Retzia! including Nolaneae! 
allied to 173), 
176. Polemoniaceae (allied 175 and 166). 
177. Boraginaceae (excluding Tretrachondra! ; close to 171, 
descended from 166). 
178. Hydrophyllaceae (descendents of 177?). 
/3.—Monocotyledons (descendants of ll) 1 . 
XIX.—Helobiae. 
179. Butomaceae (derived from extinct Nymphaeaceae). 
180. Alismaceae (allied to 11 and 179). 
181. Hydrocharitaceae (descendants of 180). 
182. Potamogetonaceae (allied to 180). 
183. Aponogetonaceae (allied to 180 and 182). 
184. Juncaginaceae. 
185. Triuridaceae. 
Etc., Etc. 
1 This division to be worked out later. 
Hamburg, Government Botanical Museum. 
May 1st, 1905. 
