Disocactus nelsonii

(Br&R)Lindgr

◊ Monatschr. Kakteenk. 28:118 (1918)
◊◊ Epiphyllum nelsonii Br&R - Contr. US Nat. Herb. 16:257 (1913)
Phyllocactus nelsonii (Br&R)Vpl - Monatschr. Kakteenk. 23:116 (1913)
Phyllocactus chiapensis Purp - Monatschr. Kakteenk. 28:118 (1918)
Chiapasia nelsonii (Br&R)Br&R - Cact. 4:203 (1923)

- Stems to 1.6 m long, to 7 cm wide, base cilindric. Flower ±6 cm long, funnelform. Ovary 2 cm long, with small scales. Receptacle bend, 2 cm long, green. Outer petals greenish yellow. Inner petals 2 cm wide, lanceolate, carmine to violet-red. Stamens numerous, base red, top white, anthers yellow. Style pink, stigmas white and yellow. Fruit small, broadly globose, dark red. Seed shiny to matt brown-black, 1.75 mm.

- Mexico: Chiapas (T: Chicharras 900-1800 m), Guerrero; Guatemala, 900-1800 m, in humid cloud forest.

Cact. 4:203"
Ep. Hb. 122', 123", 165 (fig. 99 is not Disocactus nelsonii)
Backeberg 2:762", 763"
Bravo 1:517, 518, 519"
CSJ(USA) 10():174; 30(3):80-83; 37():31
KuaS 25(1):11"
Epiphytes 5-20:67'
Icones. Pl. Succ. 30:80-83" (1958); 37:31-33" (1965)
NCL 78"
EPIG 4(4):76"; 11(1):3-8"