336 NATURAL HISTORY OF PLANTS. 



and some supplementary memoirs, 1 in which he divided the Myrtaceœ, 

 according to the consistence of their fruit, into Xerocarpicœ and 

 Chymocarpicœ. Lindley 2 similarly divided them into Leptospermeœ 

 and Myrteœ, and relegated to distinct orders the Chamœlaucieœ 3 and 

 the Lecythidece * [Barringtonieœ). In 1840, Endlicher 5 reunited in 

 one family the five sub-orders of Chamœlaucieœ, Leptospermeœ, 

 Myrtece, Barringtonieœ, and Lecythidece, adding to it Granateœ as 

 allied to Myrtaceœ, that is to say, besides the types which have been 

 excluded from the family, a total of sixty-seven genera (of which 

 about a dozen are duplicates). In 1865, Bentham and Hooker 6 

 described or indicated seventy-eight genera of Myrtaceœ, some of 

 which had just been established in France, 7 in America, 8 and in 

 Australia, 9 but especially in Germany, by O. Berg, 10 the author who, 

 in our day, has most studied this family. Bentham and Hooker 

 have, besides, considered as doubtful genera of Myrtaceœ, Fœtidia, 

 Gatostemma and Fropiera, and reunited to the Lythrariaceœ the 

 genera Tunica and Sonneratia. By attaching to other generic types, 

 previously established, Astartea, Kunzea, Lamarchea, Begelia, Phy- 

 matocarpus, Syncarpia, Tepualia, Xanthostemon, Calycolpus, and 

 Cuphaianthus, which they retained as distinct, and by restoring to 

 this family (not without some doubt) the two genera Sonneratia and 

 Fœtidia,, we reduce the number of genera n it includes to sixty-four 

 distributed in the six following series : 



I. Myrteœ. 12 — Fruit fleshy (or very rarely drupaceous). Ovarian 

 cells 2-oo , 13 disposed regularly around the axis. Leaves opposite, 

 punctuate. — 19 genera. 



II. Leptospermeœ. 14, — Fruit dry, generally capsular. Ovarian 

 cells 2-co disposed regularly around the axis. — 18 genera. 



III. Chamœlaucieœ. 15 — Fruit indéhiscent, generally monosper- 



1 Nov. Act. Nat. Cm: xxi. p. i. 10 Liniiœa, xxvii. xxix. xxx. xxxi. ; Mart. Fl. 



- Yetj. Kingd. (1846) 734, Ord. 282. Bras. fasc. 18 (1857, 1858). 



:1 Op. cit. 721, Ord. 276. " Including about 1800 species. Aphano- 



* Op. cit. 739, Ord. 283. inyrtus (Mia. Fl. Ind.-Bat. i. p. i. 180) is a 



5 Gen. 1223, Ord. 269. doubtful genus (B. H. Gen. 096). 



Gen. 690, 1006, Ord. 67. 12 DC. Prodr. iii. 230. — Ghimocarpicee Schau. 



; Especially by A. Bkongniart and A. Guis, he. cit. 



for the little studied New Caledonian types 13 Sometimes only one in Fen. lia. 



{Ann. Sc. Nat. sér. 5, ii. 124 ; iii. 210), and pre- M DC. he. cit. 209.— Xerocarpicœ, trib. 2, 



viously by P. Montrouzier (Mem. Acad. Lyon, Leptospermeœ Schau. 



x.), for plants of the same country. 16 DC. he. cit. 208; Diet. Cla^s. d'ffist. Nat. 



8 By A. Gray (Acicalyptus). xi. (1826). — Xnrocarpicœ, trib. 1, Chamœlaucieœ- 



'■' By F. Mueller (Lysicarpus, Osbomia, Thy- Schau. — Chamœlauciaceœ Lindl. Vey. Kingd. 



matocarpm, Jlomahcalyx, etc.). (1846) 721. 



