ROSACEA. 427 



a glabrous shrub from Malaysia, whose alternate simple per- 

 sistent lanceolate leaves possess ill- developed lateral stipules. The 

 flowers are small and numerous, in lax slender axillary or terminal 

 racemes. 



The group of the Jtosacece is so very natural that its extent and 

 limits were early foreseen. B. de Jussieu, in his Catalogue of the 

 Garden of the Trianon/ and Adanson, in his ''Families des Plantcs,"" 

 may, however, be considered as having clearly marked out, the one a 

 Natural Order {Rosacea), the other a Family of the Roses {Rosa). 

 A. L. DE Jussieu, in defining his order Rosacea,^ greatly enlarged 

 the frame drawn up by his predecessors ; for, besides the genera of 

 Rosacea now-a-days admitted by botanists, he included Tetracera, 

 Tigarea, and Delima, which are Billeniacea ; Suriana, now placed in 

 Ridacea ; RrocMa, a genus since attributed to Bixacea or TUiacea ; 

 those Homaliacea that were known in his time, viz., Homalium, 

 Napimoga and Blackwellia, besides CalycantUus and Plinia, a Myrtad. 

 It was K. P. DE Candolle^ who definitively excluded most of these 

 genera from Rosacea ; and, with the exception of Cepkalotiis^ 

 Amoreuxict and Trilepisimn^ the genera which he kept in this order 

 are still maintained by most botanists of the day. He also resisted 

 the tendency to follow the example, which E. Broavn^ had recently 

 set in considering as so many distinct orders the secondary tribes 

 which A. L. DE Jussieu had made in his single order Rosacea, viz., 

 Pomacea, Rosa, Sangidsorha, Potentilla, Spirea,^ Amtjgdalea. But 

 Endlicher'" and Lindley" followed this example. The former dis- 

 tinguished in his large class Rosifora, the five orders Pomacea, 

 Calycanthea, Rosacea (subdivided into Rosa, Bryadea, Spiraacea, 

 and Neuradea"^) Amygdalea and Chrysobakmea ; the latter made the 



1 1759, ex A. L. J., Gen., Ixx. ** See Conrjo (1818), 433 ; Misc. Works, ed. 



- II. (1763), 14, 286, Fam. xli. Benn., i. 115. 



^ Op. cit., 334, Ord. x. '■• We here suppress that of the Prochle(r (339), 



'' Prodr., ii. (1825), 525-639. which besides Frockia, only includes Dillcniads, 



^ Which belongs to SaxifragacecB or Crassti- with the exception of Il'nielhi, which was the 



lacece. only genus of Itosacete in the tribe. It belongs, 



^ Placed among Bixacea by Bentuam & as we have seen, to Chrysohalauece. 



HOOKEK {Gen., 124). '" Gen. (1836-1840), 1236, CI. Ixi. 



7 Dup.-Tii., Gen. Nov. Madag., 22, n. 74. — " Veg. Klngd. (1846), 539, All. xlii. 



DC, Prodr., ii. 639. — Endl., Gen., n. 6416. '* This little group, made uj) of (lie genera 



"M charactere data eerie non hujus ordinis." iVewrai/rt and Cr7v>/«w, since the tinieof A. L. dk 



(B. H., Gen,, 605.) Jussieu, has been referred to Rusacar, which 



