CALTC1FL01LE. 
89 
given for O. corniculata, from which O. stricta differs by having a 
more upright, less branched stem, more numerous and often whorled 
leaves, with longer flower-stalks and several flowers in an umbel, and 
no evident stipules at the base of the petioles.) 
Sub-Class II. CALYCIFL0R2E. (Obd. XXIII.— XLIX.) 
Corolla (and usually the stamens ) perigynous or inserted upon the 
calyx. Ovary either free or adnate with the tube of the calyx. 
Conspectus of the Orders. 
A. Corolla polypetalous. 
a. Corolla papilionaceous. 
26. Leguminosai. 
b. Corolla regular ; stamens 20 or more. 
27. Rosacea:. Leaves with stipules. 
c. Corolla regular or nearly so ; stamens fewer than 20. 
* Carpels 2 or more ; distinct or nearly so ( apocarpous ). 
23. Staphyleaceas. Leaves pinnate, with stipules. Calyx with a con- 
spicuous disk at its base inside. Stamens 5, inserted into the 
margin of the disk. Pistillum free from the calyx. Styles 2, 
united at the apex. 
27. Rosace.®. Leaves with stipules. Disk in the throat of the calyx 
or inconspicuous. 
35. Crassulacea:. Leaves without stipules. Disk none. 
** Carpels united into a solitary 1 -celled ovary . 
33. Portulacace.®. Sepals 2. Ovary superior. Placenta central. 
Leaves without stipules. 
[14. Caryophyllaceae, § Alsine.e. Sepals 4 — 5. Ovary superior. 
Placenta central. Leaves without stipules.] 
34. Paronychiace/e. Sepals 5. Ovary superior. Placenta central or 
ovule solitary. Leaves with stipules. 
[10. Droseraceaj, § Parnassieas. Sepals 5. Ovary superior. Pla- 
centas 4, parietal. Ovules numerous, not comose. Stigmas 4, 
sessile, simple.] 
31. Tamaricace.®. Ovary superior. Placentas 3, parietal. Ovules 
numerous, comose. Stigmas 3, sessile, plumose. 
36. Grossulariace^e. Stamens alternate with the petals. Ovary infe- 
rior. Ovules several. 
28. Onagrace.e. Stamens 2, alternate with the petals. Ovary inferior, 
with solitary ovules in each cell. 
41. Loranthaceas. Stamens opposite to and upon the petals. Ovary 
inferior. Ovule solitary. 
*** Carpels united into a solitary 2- (or many-) celled ovary. 
[52. Monotropace.®. Sepals distinct, imbricated in sestivation. Sta- 
mens twice as many as the petals, almost hypogynous. Style 1. 
Ovary superior. Green leaves wanting. 
51. Pyrolace.e. Calyx deeply divided, imbricated in estivation. Sta- 
