64 PENTANDRIA. 



39. Ulmus. Periniitli single, inferior, persistent, 4 — 5-cleft. 

 Capi. membranous, compressed, 1 -seeded. 

 {Scleranthus, Decandr.) 



*** Floivers of 5 petals, superior, 2-seeded. Umbellat.e. 

 A, Umbels with a partial and universal involucre. 



42. Eryngiuai. Flojvcrs sessile, capitate. Receptacle conical, 

 cha Ty. Fruit bristly. 



43. Hydrocotyle. Flowers in a simple umbel or capitate. 

 Cal. 0. Petals ovate, acute, equal. Fruit without teeth (or 

 calycine segments), suborbicular, laterally compressed, striated. 



44. Sanicula. Umhellules clustered, subcapitate, central j^om/- 

 ers abortive. Petals obcordate. Fruit clothed with hooked 

 bristles. 



52. Hrracleum. Involucres deciduous. Flowers radiant. Pe- 

 tals bifid. Fruit elliptical, dorsally compressed, striated. 



57. CEnanthe. Flowers radiant, those of the disk sessile and 

 abortive. Fruit crowned with the Cal. and Styles, corky. 



45. Caucaus. Involucres undivided. Flowers radiant, those 

 of the disk abortive. Friiii subovate, striated, rough with rigid 

 bristles. 



46. Daucus. InvQlucres Yi\\\\i\\A^(\. F/o?i^e/-5 somewhat radiant, 

 those of the disk abortive. Fruit muricated. 



50. Peucedanum." Ge/J. wi^o/z^cre very short. F/oit'e7\s nearly 

 uniform, those of the disk abortive. Fruit ovate, compressed, 

 striated, bordered. 



48. CoNiuM. Partial involucres of 3 leaves, all on one side. 

 Petals nearly uniform. F\uit ovate, tumid, with 5 undulated 

 ribs on each side. 



47. BuNiUM. Par/?'aZf?2yo/«cre5 setaceous (often wanting). Pe- 

 tals uniform. Fruit oblong, striated, with the interstices tu- 

 berculated. 



55. SiUM. Involucres of many leaves. Petals heart-shaped, 

 nearly uniform. Fruit nearly oval, laterally compressed and 

 striated. 



49. Selinum. Involucres, general and partial, reflexed. Petals 

 heart-shaped nearly uniform. Fruit compressed, striated down 

 the middle. 



51. Crithmum. CaZ. entire. P^^a/i' uniform, entire, broadest at 

 the base, their extremities curved inwards. Fruit oval, striated. 



53. LiGUsTicuM, Gew. ZTzyo/z/cre membranaceous. Pe/a/5 uni- 

 form, incurved at the extremity, entire. Cal. of 5 teeth. Fruit 

 oblong, furrowed. 



54. Angelica. Gen. involucre often wanting. Petals uniform, 

 incurved, entire. Fruit roundish with three wings on each 

 side. 



56. SisoN. Gen. and part, involucre of about 4 leaves (the 



