EPIPHYLLUM. 185 
Type locality: Organ Mountains, Brazil. 
Distribution: Brazil. 
This plant was introduced into England in 1839. It was named by G. Gardner for 
the Duke of Bedford, who had sent him to Brazil to collect plants. The Duke of Bedford 
brought together at Woburn Abbey a very large and choice collection of cacti which became 
one of the finest in England. His gardener, Mr. James A. Forbes, published a catalogue of 
this collection in 1837. 
Two varieties of this species are mentioned in horticultural works, namely, var. rubra 
and var. superbum under Epiphyllum russellianum. 
Illustrations: Curtis’s Bot. Mag. 66: pl. 3717; Watson, Cact. Cult. 42. f. 9; Dict. 
Gard. Nicholson Suppl. 346. f. 370: Gartenflora 33: pl. 1172; Forster, Handb. Cact. ed. 
2. 873. f. 119; Rother, Praktischer Leitfaden Kakteen 106; Paxton’s Mag. Bot. 10: facing 
245, as Epiphyllum russellianum; Hort. Univ. 1: pl. 5, as Cereus russellianus; Rimpler, 
Sukkulenten 146. f. 79, as Phyllocactus russellianus; Cycl. Amer. Hort. Bailey 2: f. 766, as 
Epiphyllum truncatum russellianum (perhaps a hybrid); Contr. U. S. Nat. Herb. 16: pl. 81. 
SPECIES OF THIS RELATIONSHIP. 
EPIPHYLLUM BRIDGESII Lemaire, Illustr. Hort. 8: Misc. 5. 1861. 
Epiphyllum truncatum bridgesii Riimpler in Forster, Handb. Cact. ed. 2. 870. 1885. 
Epiphytic; joints green, flattened with 2 or more crenations on the side; areoles more or less 
setose, the setae yellowish brown; flowers terminal, 6 cm. long, nearly regular, purplish to crimson; 
perianth-segments oblong, acute; stamens long-exserted ; style about as much exserted as stamens, 
purplish; ovary angled, angles sometimes bearing setose areoles. 
Type locality: Not cited. Described from garden plants of unknown origin. 
Distribution: Brazil cr Bolivia or both. 
This plant was described by Lemaire from a vegetative specimen seen in the collection 
of L. Desmet and from one in the collection of Schlumberger. He associated it with 
Epiphyllum russellianum, with which it must be allied, rather than with E. truncatum, to 
which it is referred as a synonym by the Index Kewensis. _ 
Schlumberger had named the plant Epiphyllum rueckerianum, and here this name, 
often referred to in horticultural literature, should be referred. 
It was briefly described by W. Watson (Gard. For. 2: 243. 1889), who writes of its 
being awarded a first-class certificate at a flower show. . 
Schumann unfortunately describes the flower as zygomorphic, which may be an error; 
specimens recently sent to us from A. Berger have a regular flower. The ovary was orig- 
inally described as angled and this is one of the differences between Zygocactus and Schlum- 
bergera. 
° We do not know the origin of this plant. As it seems to have been introduced’ by 
Bridges it may have come from Bolivia, where he did much of his work. 
This plant is sometimes called Epiphyllum truncatum rueckerianum. 
I Hustration: Dict. Hort. Bois 497. f. 347, as Epiphyllum ruckerianum. 
G 29) 4, RPIPHYLLUM (Hermann) Haworth, Syn. Pl. Succ. 197.1812. 
Phyllocactus Link, Handb. Erkenn. Gewachse 2: 10. 1831. 
Phyllocereus Miquel, Bull. Sci. Phys. Nat. Néerl. 112. 1839. 
m often terete and woody; branches usually much 
eoles small, borne along the margins of the 
flattened branches; spines usually wanting in mature plants, but often represented in seedlings and 
juvenile forms by slender bristles; true leaves wanting ; cotyledons rather large sometimes persisting 
for a long time; flowers usually large, in some species nocturnal, in others diurnal, ‘ 
i i ies greatly elongated; filaments 
very fr - flower-tube longer than the limb, in some specie 
usually long. borne at top of tube or scattered over surface of throat; style elongated, white or 
Plants mostly epiphytic, the main stem ¢ . 
flattened, often thin and leaf-like, sometimes 3-winged; ar 
