SYNOPSIS OP GENERA. XX1U 



Comarum. Cal. 10-cleft. Seeds naked, even, on the surface of a spongy 

 hairy permanent receptacle. Rosacea, p. 92. 



Potentilu. Cal. 10-cleft. Seeds naked, rugged, beardless. Recept. 

 dry, obsolete. Rosacea, p. 92. 



Class XIII. Polyandria. Stamens numerous, from the 

 receptacle. 



Order I. Monogynia. Pistil 1. 



* Petals 4. 



Papaver. Cal. of 2 leaves. Caps, of 1 cell, opening by pores under the 

 stigma. Papaveraceee, p. 13. 



MECONorsis. Cal. of 2, caducous leaves. Pet. 4. Style evident. 

 Stigma of few rays. Capsule opening at the top by 4 — 6 valves. Receptacles 

 of the seeds filiform. Papaveraceec, p. 14. 



Chelidonium, Cal. of 2 leaves. Pod of 1 cell. Seeds crested. Pa- 

 paveracece, p. 14. 



Glaucium. Cal. of 2 leave?. Pod of 2 or 3 cells. Seeds dotted. Pa- 

 paveracece, p. 14. 



* * Petals 5. 



Helianthemum. Cal. of 3 equal leaves, or 5, of which 2 outer ones 

 are smaller. Pet. 5. Stigma captitate. Caps. 3-valved. Cistinece, p. 33. 



Tilia. Caps, of several close cells. Seeds few. Cal. in 5 deep, valvular, 

 equal segments, deciduous. Tiliacete, p. 53. 



* * * Petals numerous. 



Nymphtea. Be rry coated, of many cells. Cal. larger than the petals. 

 Pet. seated on the germen. Nect. in the centre of the stigma. Nymjihceucea:, 

 p. 11. 



Nuphaii. Berry coated, of many cells. Pet. from the receptacle, fur- 

 rowed and honey-bearing at the back. Nymphaacea, p. 12. 



Order II. Pentagynia. Pistils 2 — 6. 



Aquilegia. Cal. 0. Pet. 5, equal. Nect. 5, spurred below. Ranun~ 

 culacece, p. 10. 



Stratiotes. Cal. superior, 3-cleft. Pet. 3. Berry coated, of G, or 

 more cells. Hydrocharidece, p. 272. 



Order III. Polygynia. Pistils numerous. 



Thalictrum. Cal. 0. Pet. 4 or 5, imbricated. Seeds without any ap- 

 pendage. Ranunculacece, p. 5. 



Clematis. Cal. 0. Pet. 4 — 8, valvular, or folded in at the edges. 

 Seeds tailed. Recept. capitate. Ranunculacece, p. 4. 



Anemone. Cal. 0. Pet. 5 — 15, imbricated. Seeds numerous. Ranun- 

 cuMCeaz, p. 6. 



Hellesorus. r .aJ.. 0. Pet. 5. nermanent. Nect. tubular, 2-lipped. 

 Follicles 3 or 4. Ranunculacece, p. 9. 



Caltha. Cal. 0. Pet, 5, or more. Nect. 0. Follicles 5 — 10. Ra- 

 nunculaceat, p. 9. 



