161 



{Mem. Porttd. 4.), for the following reasons : 1 . because their petals cohere 

 in a long tube of the same nature as that of gamopetalous Crassulaceoe ; 



2. because their capsule consists of three loculicidal cells, that is to say, 

 which separate through the middle, forming three septiferous valves ; and, 



3. because their embryo is straight, with flat cotyledons, and stationed in 

 the centre of fleshy albumen. They approach the monopetalous Crassulaceae 

 in the structure of their flower; and Turneracese and Loasese in the form of 

 their fruit. Dec. 



GEociRAPHY. All Mexican. 

 Properties. Unknown. 

 Examples. Fouquiera, Bronnia. 



CXLVl. GALACINE^. 



GalaciNjE, Don in Edinb. New Phil. Journal, Oct. (1828). 



Diagnosis. Polypetalous dicotyledons, with perigynous definite sta- 

 mens which are alternately sterile, concrete carpella, a superior ovarium of 

 several cells, several sepals, and indefinite ovules. 



Anomalies. 



Essential Character — Calyx 4-C-parted, persistent. Petals equal in number to 

 the segments of the calyx, into the base of which they are inserted. Stamens perigynous, 

 twice or 4 times as many as the petals, alternately barren ; monadelphous or distinct ; 

 anthers 2-celled or 1-celled. Ovarium 3- or 4-celled, superior, with numerous ovula at- 

 tached to the axis ; stigma sessile, 3-4-lobed. Capsule 3-4-celled. with 3 or 4 valves, 



bearing the septa in their middle. S'eerfs indefinite. . '. Herbaceous ■^\a.nX,&. 



Leaves radical, simple or lyrate, without stipulaj. Flowers in terminal racemes. Pedicels 

 with a bractea at the base. 



Affinities. This obscure order has been lately defined by Mr. Don; 

 but its affinities can scarcely be determined, until something is known of the 

 seeds. According to this botanist, it should be placed near Philadelphese 

 and Saxifragese ; but, in the opinion of Adrien de Jussieu, it, or at least 

 Francoa, is akin to Crassulaceae. The latter considers the stamens perigy- 

 nous, the former describes them as hypogynous. 



Geography. Natives of the temperate parts of North and South 

 America. 



Properties. Unknown. 



Examples. Galax, Francoa. 



Obs. This order requires to be reconsidered. 



CXLVII. CRASSULACE^. The House-leek Tribe. 



Semperviv^e, Juss. Gen. 207. (1789) — Succulents, Vent. Tabl. 3. 271. (1799) — 



Crassul^e, Juss. Diet, des Sc. Nat. 11. 369. (1818) CRASsuLACEi*;, Dec. Bull. 



Philom. n. 49. p. 1. (1801); Fl. Fr. ed. 3. v. 4. p. 271. (1805); Mtmoire (1828), 

 Prodr. 3. 381. (1828); Lindl. Sijnops. 63. (1829) Sede.I!, Spreng. 



Diagnosis. Succulent polypetalous dicotyledons, with definite perigy- 

 nous stamens, superior distinct ovaria surrounded at the base by hypogynous 

 scales, indefinite albuminous seeds, sepals in a single row, and exstipulate 

 leaves. 



Anomalies. Penthorum is not succulent. This genus and Diamorpha 



M 



