46 NATURAL HISTORY OF PLANTS. 
connected with the Sa/solacea. He enumerated besides, Gyrostemonce 
in connexion with the P/ylolaccaceæ ; they were ranged after the 
Euphorbiacee by Winpuny,’ who distinguished into two very 
different orders the Pefiveriaceæ (Petiveria, Seguieria, Gallesia), 
and the Phytolaccacee,* to which he joined the genus S/eynosperma, 
recently established by Bentuam.* Moquin-Taxpon, who in 
1849 formed the first complete monography of the group Phyto- 
laccacee,’ divided it into eight tribes: Seguiertee, which are the 
Petiveriacee of Lixnpuny; Rivinee, comprising, besides Rivina and 
Mohlana, the genus Ledenbergia of Kiovszon ;° Microtee (with the 
single genus J/icrotea); Limee, which comprises, besides Limeum 
(and Semonvillea) the Anisomeria of Don ;’ the Giseckieæ, of which 
Giseckia is the type, and by which it is connected with Phytolacca, 
Pircuma and Freilla; the Stegnospermee (Stegnosperma); Gyros- 
temonee, formed of different genera united by us to Gyroslemon 
(Codonocarpus,* Cyclotheca), and of Didymotheca ; and Tersoniee, 
represented by the single genus Zersonia. Since then we have 
connected” with P/ytolaccacee, as the type of a special series, the 
Barbeuia of Durntit-THovars," doubtfully attributed to Rosacee.” 
The 4gdestis of Sesse AND MoçinNo has been indicated" as belonging 
to the Phytolaccacee, where it forms a special series on account of 
the form of its receptacle and its inferior ovary ; and the ancient 
genus 7helygonum has appeared to us, not without some doubt, capable 
of being connected as the title of a distinct series with the P/yto- 
laccaceæ with unicarpellary gynæceum, like the Rivinacee. Thus we 
find assembled in this small family eighteen genera grouped in six 
series and comprising about seventy-five species. All those, eight 
or nine in number, which constitute the Gyrostemon series are Austra- 
lian. It has also the only known species of the genus J/onococeus. To 
America belong exclusively all the Zrcillas, Anisomerias, Agdestidce, 


1 Veg. Kingd. (1846), 282. 7 In Edinb. New Phil. Journ., xiii. (1832). 
2 Nat. Syst., ed. 2, 212.—Veg. Kingd., 386, 8 A. Cunn., ex Hook., Bot. Misc., i. (1830). 
Ord. 137.—Linx, Handb., i. (1829), 312.— 9 Hook. F., in Hook Journ., vi. (1847). 
Petivereæ AG., Class. (1835), 221. 10 In Adansonia, iii. 312 (1863). 
3 Nat. Syst, ed. 2, 210.—Veg. Kingd., 508, 1 Gen. Madag. (1863). 
Ord. 193.—Rivinee AG., op. cit., 218. 12 By SPRENGEr. It has also been connected 
4 Voy. Sulph., Bot., 17 (1844). with Bixaceæ and Tiliacee (DuP.-TH.) with 
5 In DC. Prodr., xiii, p. ii. 2, Ord. 156. Euphorbiacee (MEIssN.). 
6In Pl. Karst. exs. (1546), ex Mog., 13 B. H., Gen., 33 (1862). 
Prodr., 14. 
