PENTANDRIA DIGYNIA.

159.

blUM.

Fl. flosculous, fertile. Pet. cordate. Seed almost ovate,striated.131, Semnum. FL flosculous, fertile. Pet. cordate. Seed compressed,striated in the middle.

134, Critiimum. FL flosculous, fertile. Pet. broad at the base. Invol.

horizontal. Col. entire.

137. Lic.usticum. Fl. flosculous, fertile. Pet. involute. Invol. mem-branous. Cal. 5-toothed.

136. Meum. Fl. flosculous, fertile. Pet. inflexed. Invol. incised. Cal.obsolete.

135. Angelica. Fl. flosculous, fertile. Pet. incurved. Umhellels globose.

Seed hemispherical, 3-winged.140. Sison. Fl. flosculous, fertile. Pel. inflexed. Umbel of few rays.Seed ovate, striated.B. Involucres partial, universal none.

145. Aethusa. Fl. somewhat radiate, fertile. Involucells halved.

147. CH/Euopnvi.r,UM. Fl. somewhat radiate, abortive. Involucells re-

flexed, concave, 5-leaved.

146. Scandix. Fl. radiate, abortive. Fruit subulate.

143. Phellandhum. Fl. flosculous, fertile. .Fnu< crowned.

148. Impekatoisia. Fl. flosculous, fertile. Umbel expanding flat. Fruit

compressed, marginate.

144. Cicuta. Fl. flosculous, fertile. Fruit nearly ovate, furrowed.Bupleurum 1. Caucalis 4. Angelical. Slum 3. Oenanthe I, 3.

C. Invol. none : scarcely universal: never partial.154. Ahum. Involucrum 1-leafed. Fl. flosculous, fertile. Fruit ribbed.

Pet. indexed.153. Pimpineila. Fl. flosculous, fertile. Fruit striated. Stig. nearly

globular.155- Aegopodium. Fl. flosculous, fertile. Fruit ovate, striated. Stig.

simple.

151. Anethum. Fl. flosculous, fertile. Fruit somewhat compressed:

3-ribbed on both sides.

149. Pastinaca. FL flosculous, fertile. Fruit compressed flat.

150. Smvrnium. Fl. flosculous, abortive. Seed reniform, angular.

152. Carum. Fl. flosculous, abortive. Seed gibbous, striated.

ORDER III. TRIGYNIA.

* Fl. superior.

156. Viburnum. Cor. 5-cleft. Berry 1-seeded.

157. Sambucos. Cor. 5-cleft. Berry 3-seeded.

160. Alsine. Cal. 5-leaved. Pet. 5. equal. Cap*. 1-celled, 3-valved.Fl. inferior.

158. Staphvlea. Cor. <,. pc t. Caps. 2 or 3, inflated.

159. Iamaeix. Cor. 5-pet. Caps. 3-valved. Seedpappous.

160. Cohrigioea. Cor. 5-pet. Seed 1, triangular.

Stellaria 2.