2l6 THE CACTACEAE. 



Schumann cited Lepismium mittleri as a synonym of Rhipsalis squamulosa, referring 

 it to Forster (Handb. Cact. 455. 1846), but the plant is there described as Rhipsalis mittleri. 



Cereus elegans Hortus appeared first (Pfeiffer, Enum. Cact. 138. 1837) as a synonym 

 of Lepismium commune, while the Index Kewensis refers it to Rhipsalis mittleri. 



Cereus myosurus tenuior Salm-Dyck (Hort. Dyck. 65. 1834) is only a name. 



Lepismium cavernosum minus Lindberg is a name mentioned by Roland-Gosselin 

 (Rev. Hort. 70: 108. 1899). 



Lepismium duprei, the name mentioned by Salm-Dyck (Cact. Hort. Dyck. 1844. 41. 

 1845) and by Forster (Handb. Cact. 456. 1846) as in the collections at Paris, was never 

 described. 



Lepismium laevigatiim Salm-Dyck (Cact. Hort. Dyck. 1844. 41. 1845) is without 

 description, nor do we find it listed in the Index Kewensis. 



Illustrations: Fl. Flum. 5: pi. 29, as Cactus cruciformis ; Loddiges, Bot. Cab. 19: pi. 

 1887; Loudon, Encycl. PL ed. 2. 1202. f. 17365, as Cereus setosus; Palmer, Cult. Cact. 195, 

 as Lepismium; Curtis' s^ot. Mag. 66: pi. 3755;Garten-Zeitung4: 182. f. 42, No. 3; Loudon's 

 Encycl. PI. ed. 3. 1380. f. 19411, as Lepismium myosurum; Monatsschr. Kakteenk. 3: 41, as 

 L. knightii; Abh. Bayer. Akad. Wiss. Miinchen 2: pi. 7, f. i; Curtis's Bot. Mag. 66: pl. 

 3763 ; Forster, Handb. Cact. ed. 2. 898. f. 123 (in error 103) ; Loudon, Encycl. PI. ed. 3. 1380. 

 f. 19412; Nov. Act. Nat. Cur. 19^: pl. 16, f. 12, as L. commune; Goebel, Pflanz. Schild. i: 

 pl. 2, f. 3, 4, as L. radicans (seedling); Gartenwelt 16: 633; Schumarm, Gesamtb. Kakteen 

 f. 98, C, D, as Rhipsalis cavernosa; Gartenflora 39: f. 38, as Lepismium cavernosum; Martins, 

 Fl. Bras. 4": pl. 55, f. 2, as Rhipsalis macropogon; Arch. Jard. Bot. Rio de Janeiro i: pl. 

 25, as Rhipsalis radicans; Arch. Jard. Bot. Rio de Janeiro i: pl. 24, as R. myosura; Mollers 

 Deutsche Gart. Zeit. 25: 477. f. 11, No. 19, as R. squamulosa; Rev. Hort. 85: f. 152, as R. 

 anceps. 



Plate XXII, figure 2, shows the plant obtained by Dr. Rose in Brazil in 1915 which 

 flowered November 18 of that year. 



Lepismium ramosissimum Lemaire in Forster, Handb. Cact. ed. 2. 899. 1885. 

 Rhipsalis ramosissima Schumann in Martins, Fl. Bras. 4^: 299. 1890. 

 Hariota ramosissima Kuntze, Rev. Gen. Pl. i: 263. 1891. 



This is a very uncertain species which we know only from descriptions. It is from 

 Brazil. 



7. HATIORA Britton and Rose, Stand. Cycl. Hort. Bailey 3: 1432. 1915. 

 Hariota De CandoUe, Mem. Cact. 23. 1834. Not Adanson, 1763. 



Unarmed, slender, branched cacti; branches terete, short, arising in 2's or 3's from tops of 

 older ones, smooth, leafless and spineless,* bearing several small areoles along their sides and each 

 a large, woolly, terminal one from which the flower and succeeding branches arise; sepals usually 

 in 2 series, outer ones broader and short, inner ones larger and more petal-like; petals distinct, 

 narrowed toward base; stamens distinct, erect, borne on disk; stigma-lobes 4 or 5, erect or a little 

 spreading, white; ovary globular, naked or nearly so. 



Type species : Rhipsalis salicornioides Haworth. 



Some six or seven species have been described; we recognize three. 



The genus Hariota was named for Thomas Harlot, a botanist of the i6th century, 

 Hatiora being an anagram. It is closely related to Rhipsalis, with which it is often united. 



The flowers open only in bright simlight and are rotate or nearly so. In the Uruted 

 States the plants flower under glass, usually in the winter from December to February, 

 but sometimes as late as April. 



'Sometimes peculiar lateral branches are produced which are made up of short, rounded joints with numerous 

 areoles bearing several bristles or hairy spines. See illustrations of Schiunann (Gesamtb. Kakteen f. 97, D) and 

 Loddiges (Bot. Cab. 4: 369). In cases which we have observed these occur on stunted or starved plants, the areoles 

 arranged in 6 rows forming low angles on the branchlets. 



