72 CLASS V. ORDER I. 



134. SisoN. Involucres about four leaved ; umbel 

 of few rays unequal ; petals inflected ; fruit ovate or 

 oblong, striate. 



135. CicuTA. Partial involucres without the gene- 

 ral; petals somewhat flat; fruit subovate ; grooved. 



Order III. TRIGYNIA. Three styles. 



136. Viburnum. Calyx five parted, superior ; co- 

 rolla five cleft ; berry one seeded. 



137. Sambucus. Calyx five parted, superior ; co- 

 rolla five cleft; berry three seeded. 



138. Rhus. Calyx five parted, inferior ; corolla 

 five petalled ; berry one seeded. 



139. Staphylea. Calyx inferior, five parted; pe- 

 tals five ; capsules inflated, connate ; nuts two, glo- 

 bose. 



140. Sarothra. Calyx five parted ; corolla five 

 petalled ; capsule one celled, three valved. 



Order IV. TE TEA G YNIA. Four styles. 



141. Parnassia. Calyx five parted; petals five; 

 nectaries five, cordate, crowned with globular headed 

 filaments ; capsule two celled, four valved. 



Order Y. PENTAGYNIA. Five styles. 



142. Araria. Flowers umbelled, with involucres ; 

 calyx five toothed, superior ; corolla five petalled ; 

 berry five seeded. 



143. LiNUM. Calyx inferior, five leaved; petals 

 five ; filaments coalescing at base ; capsule ten celled, 

 five valved ; seeds solitary. 



144. Drosera. Calyx five parted, corolla five 

 petalled, inferior; capsule one celled, three or five 

 valved, opening at top ; seeds many. 



