RHAMNACEiE. 177 



Plate 167. 



FRANGULA, Touryi. 



Calyx 5- (rarissime 4-) fidus, tubo urceolato intus disco 

 tenui vestito. Petala brevia sen brevissima. Ovarium libe- 

 rum, 2 - 4-loculare. Drupa baccata. 2-4-pyrena. Semina 

 exsulca, rhaphe laterali. Cotyledones carnosas planae. — 

 Frutices vel arbusculas ; foliis alternis penninerviis, venis 

 rectis oblique parallelis ; floribus semper hermaphroditis. 



Frangula, Tourn. Inst. p. 612. t. 383. Mcench, Meth. Suppl. p. 271. 



Reichenb. Fl. Germ. 1. p. 488. Bennett in PI. Jav. Rar. p. 131 . 

 Rhamni Sect. Frangula, Linn. Gen. 265. (Gaertn. Fr. 1. 110, Schkulir, 



Handb. t. 46.) DC. Prodr. 2. p. 26. Brongn. in. Ann. Sci. 



Nat. 10. p. 362. t. 13. f. 5. End!. Gen. 5722. 

 Aldcr-Bucktliorn. 



Calyx five-cleft, rarely four-cleft, with an urceolate or 

 campanulate tube ; the lobes ovate or triangular, more or less 

 petaloid, and carinate-one-nerved within, valvate in aestiva- 

 tion, deciduous by a circumscissile line after flowering, leav- 

 ing the persistent cupulate tube at the base of the fruit. 

 Disk a thin lining to the tube of the calyx, not surrounding 

 the ovary. Petals inserted into the edge of the disk alter- 

 nate with the lobes of the calyx, much smaller than they, 

 erect, obovate, unguiculate, often emarginate, cucullate, invo- 

 lute around the stamens in aestivation, deciduous. Stamens 

 as many as the petals and opposite them, short : filaments 

 subulate : anthers didymous, two-celled, introrse, the cells 

 opening longitudinally. Ovary free, two - four-celled : styles 

 commonly united into one : stigmas two to four, distinct 

 or somewhat united. Ovule solitary in each cell, erect from 

 the base, anatropous : the raphe at first next the axis. 



Fruit a globular baccate drupe, two -four-celled, con- 

 taining from two to four (commonly three) cartilaginous 

 one-seeded pyrenae, which arc convex on the back, perforated 



