150 37. TTMBELLirEE-aB. 



Suborder I. OilTHOSPERM^. 



Seed or albumen straight or nearly so. UmbelB various. 



* Umbels imperfect or simple; no fr. -stripes. "No carpophore." 



Tribe I. HYDROCOTYLE^. Fr. laterally flattened, its 

 back even or acute. Umbel irregular or imperfect. 



1. Hydhocotyle. Cal.' inconspicuous. Pet. ovate, entire. 

 Fr. of 2 flat nearly orbicular carpels, eacb witb 6 flliform 

 ridges, of wbich tne dorsal and 2 lateral are often inconspi- 

 cuous ; the 2 otliers arched. Stripes 0. Commissure linear. 



Tr. II. 8ANICTJLBM. Fr. ovoid ; transverse section nearly 

 round. Umbel simple or imperfect. 



2. Sanictila. Cal. of 5 lecvflike teeth. Pet. erect, obovate, 

 with a long iriflexed connivent point. Fr. subglobose, covered 

 vnth hooked spines ; ridges ; stripes many. 



3. AsTEANTiA. Cal. of 5 leaflike teeth. Pet. erect, with a 

 long inflexed point. Fr. with 5 plaited dentate ridges; 

 stripes 0. 



Tr. III. EMYNQIFjE. Ft. ovoid ; transverse section nearly 

 round. Fl. in a head-like umbel. 



4. Eryngitjm. Cal. of 5 leaflike teeth. Pet. erect, oblong, 

 with a long inflexed point. Fr. covered with chaffy scales, 

 without ridges or stripes. 



** JJrnbek perfect or compound. 



t Carpels with 5 primary ridges only. 



Tr. IV. AMMINEM. Fr. of two pentagonal carpels with 6 

 prominent ridges ; the commissure about as broad as either 

 of the other four sides. 



A. Leaves compound. 



5. CiCTjTA. Cal. of 5 leaflilie teeth. Pet. obeordate with an 

 inflexed point. Fr. subdidymous. Carp, with 5 equal broad 

 flattened ridges, the lateral marginal ; stripes solitary. 



6. Apitim. Cal. inconspicuous. Pet. roundish entire with an 

 oblique acute or small involute point. Fr. roundish ovoid, 

 didymous. Carp, with 5 filiform equal prominent ridges 

 and solitary stripes. — Inv. 0. 



7. Pbtrosbuntjm:. Cal. minute or Inconspicuous. Pet. 

 roundish entire with a narrow incurved point. Fr. ovoid. 

 Carp, with 5 flliform equal ridges and solitary stripes. Car- 



^ By calyx, throughout this Order, the free margin is intended. 



