506 SYSTEMATIC BOTANY. 



of the Genera : — Limnanthes, Florkea. These are the only genera, 

 which include 3 species. 



Properties and Uses. — In these they resemble the Cruciferse 

 and Tropseolacese. 



AVe conclude our notice of the Natural Orders included under 

 the Sub-class Thalamiflorae, by the following Artificial Analysis. 

 It is founded upon that given by Lindley in his Vegetable King- 

 dom. The object sought to be attained in this analysis, is to 

 facilitate the student in ascertaining the order to which a plant 

 belongs ; and then, when the plant has thus been referred to its 

 proper order, by turning to the description of that order as 

 numbered below, in the body of the work, a more complete ac- 

 count will be found, by which a more perfect knowledge of it 

 may be obtained. It should be noticed that, however carefully 

 such artificial analyses may be drawn up, it is almost impossible 

 to render them universally applicable, on account of the extreme 

 shortness of the characters which are necessarily employed. 



Artificial Analysis of the Natural Orders in the Sub-class 

 Thalamiflor^. 



(The numbers refer to the Orders in the present work.) 

 1. Flowers Poly axdrous.— Stamens more than 20. 



A. Leaves without stipules. 



a. Ccufels more or less distinct, {at least as to the styles), or solitary. 



1. Stamens distinct. 



Carpels immersed in a fleshy tabular 



thalamus Nelumbiaceoe. 11. 



Carpels not immersed in a thalamus. 



Embrj-o in a vitellus .... Cabombaceoe. 9. 

 Embryo naked, very minute. 



Seeds arillate Dilleniacem. 2. 



Seeds exarillate. Albumen fleshy 

 and homogeneous .... 



Flowers hermaphrodite . . RanunculacecB. 1. 

 Flowers unisexual . . . Schizandraceoe. 6. 

 Seeds usually exarillate. Albumen 

 ruminate Anonacece. i. 



2. Stamens united in one or more parcels. 



Calyx much imbricated. 



Seeds smooth Hypericaceoe. 36. 



Seeds shaggy Reaumuriacece. 37. 



b. Carpels wholly combined, (at least as to the ovaries), with more than one 



placenta. 

 Placentas parietal, iu distinct lines. 



Anthers versatile. Juice watery . . Capparidaceoe. 16. 



Anthers innate. Juice milky . . Papaveracece. 13. 

 Placentas parietal, spread over the lining 



of the fruit Flacourtiaceae. 19. 



Placentas covering the dissepiments . . Nyinphceaceoe. 10. 

 Placentas in the axis. 



Stigma large, broad, and petaloid . . Sarraceniacece. 12. 



Stigma simple. Calyx much imbricated. 

 Leaves compound .... Rhizobolaceoe, 39. 



