220 



NATURAL HISTORY OF PLANTS. 



corollas are in fact similar to those of several American Anonax in 

 the breadth of the petals and the thickness of their ed^es ; while 

 their ripe carpels are, as we have seen, as thick as in several species 

 of Unona ; their number is considerable in the Hower, and much 

 reduced in the fruit. 



Thus constituted, the genus Xylopia contains about thirty species 

 from the warm regions of Africa,' Asia," and Oceania,' while about 

 fifteen come from tropical America/ They are trees or shrubs, with 

 flowers solitary or cymose, axillary or lateral, rarely terminal. 



The genus Anona (figs. "l^l-llXf, which has given its name to 

 the whole order, and to which nearly all its species were at first 



referred, may be defined in few words, now that we know the pre- 

 ceding genus : Anona is Xylopia with a convex receptacle whose pauci- 

 ovulate ovaries become a fleshy multiple fruit with connate carpels 

 (figs. 267, 2 OS, 271) ; or, again, Anona is to Xylopia what Duguetia 

 is, on the whole, to Uraria. The calyx consists of three sepals, 



BhaiH.'(l, concave witliin and bowed at the apex, 

 and win-re they (»iily touch hy a rather thin cdpe. 

 n<it hy a very bnmd surfiice. In fact, as in A'. 

 f'ifi/'ardi, tlu-y are nearly the petals of I'nonn. 



' Hook., iNV<7pr, 2(>i — Hknth., Linn. Traiui., 

 xxiii. 47H.— A. DC, Mrm., -M-'-W. — \\\c\l ., 

 (il'ILL., I'KKK., Tent. Ft. SenetJ., i. 9.— H. Hn., 

 Adntmonifi, iv. 140; v. 3G2. 



" Hook, k Thoms.. Fl. Ind., i. 123.— Tiiw.. 

 Knum. I'l. Zeyt., 'J. 



> Zoi.i.., Linnaa, xxix. 318.— MiQ., FL Ind.. 

 Ila>., i. p. ii. 37 ; Ann. Mux. Liii/d. /int., ii. 43. 



♦ A. S. H.. /'/. Itnij, .1//r.. i. 31», t H. A. 

 Kuii.. Fl. Cut,., ir., t. vi. vii.— Maut., Fl. Urax., 

 ,</iofiac., 41,t. 13.— (iKi;-Kii., FL lint. U\ Ind., 



6.— ScHLTL., Lintuta, ix. 326.— I'l. A. Thiana, 

 Ann. Sc. Nat., st^r. 4, xvii. 37. Also, for the 

 8|)ecie8 of dillerenl countries, Wam'., Jirp., i. 75; 

 Ann., iv. fil ; vii. 59. 



* Anona L., (Jen., n. 093 {AuHona). — J res., 

 Gen., 2K3.— r.,i:i(TNKK, FmcL, ii. 193, t. 138.— 

 DrN.. .l/««., 28, r.H, t. 2 7.— DC, Sy»f., i. U\G; 

 J'roilr., i. 83 ; ap. Dki.Kss.. Iron. Sri., i. t. 8<;. — 

 Si'ACH, .S'«.7. a Jiiijlon, vii. 497.— Kndi.., (/en., 

 n. 4723.— Walp.. Rep., i. Hf. ; ii. 7 IK ; v. 15; 

 Ann.,\\.20; iv. 5(5 ; vii 58.— flo^ lirff., t.U2H. 

 — Hut. Mn<j.,X. 2011. 2911, 2912. 3095. 422(5. 

 H. H., tlen., 27, 958. n. 3(».— H. My.. Adan- 

 xiinin, viii. 2(55, 29(>, 3 In, 389. — (rHOHabanut 

 IM.l M., Sor. iie„. Amrr., 43. 



