LEOCEREUS. 



109 



It is called, in Bahia, rabo de raposa and tail of the fox. 



Figure 160 is from a photograph of a plant collected by Dr. Rose in Bahia in 1915; 

 figure 161 shows a flower of an herbarium specimen received from Ur. Zehntner. 



2. Leocereus melanurus (Schumann). 



Cereus melanurus Schumann in Martius, Fl. Bras. 4=: 200. 1890. 



Stems more or less cespitose from fibrous roots, slender, 1 meter long 

 or more, 2 to 2.5 em. in diameter; ribs 12 to 16, low, only 2 to 3 mm. high; 

 branches 10 to 40 cm. long, often short-jointed, 2 to 2.5 cm. in diameter; 

 areoles approximate, 2 to 5 mm. apart, white-felted when young; spines 

 numerous, very unequal; lower radials about 20, white, bristle-like, 5 to 8 

 mm. long; upper radial spines and centrals about 15, all brown, stouter 

 than the lower radials and a little longer, except that 1 or sometimes 2 

 of the centrals are much elongated (3 to 5 cm. long) ; flower narrow, 5 

 to 6 cm. long, somewhat enlarged above, appearing in December; flower- 

 tube 4 to 5 cm. in diameter, covered with closely appressed hairs; perianth- 

 segments narrow, erect, acute; seeds 1.5 mm. long, brownish. 



Type locality: Serra de S. Joao del Ray, Brazil. 



Distribution: Minas Geraes, Brazil. 



The above description is drawn from the original of Schumann, 

 supplemented by notes from specimens collected in Minas Geraes, 

 Brazil, by Campos Porto and sent to Washington by Dr.A. Lofgren 

 in 191 7. These specimens differ considerably in habit from the 

 plant as originally described, but since they come from near the 

 type locality and have the same ribs and spines we believe we are 

 justified in so referring them. 



Illustration: Martius, Fl. Bras. 4 2 :pl. 39, as Cereus melanurus. 



Figure 162 is copied from the illustration above cited. 



3. Leocereus glaziovh (Schumann). 



Cereus glaziovii Schumann in Martius, Fl. Bras. 4 2 : 200. 1890. 



Stems erect, with somewhat spreading branches, 1.5 to 2 cm. 

 in diameter; ribs 12, low; areoles a little longer than broad; spines 

 20 to 30, subulate, brownish, 1.5 to 2.5 cm. long; flowers 6 cm. long, 

 funnelform; inner perianth-segments white, 2.5 to 3.5 cm. long, 5 

 mm. broad, acuminate; stamens included; scales of the ovary 

 woolly in their axils; fruit narrowly oblong, 2 cm. long, 5 mm. in 

 diameter; seeds small, black. 



Type locality: Near Pico dTtabira do Campo. 



Distribution: Known only from the type locality. 



Cereus glaziovii Schumann was placed by K. Schumann 

 next to C. melanurus Schumann, and is probably congeneric 

 with it ; its flowers are similar, but the ovary and fruit are not 



spiny. It is known only from the collection made by Glaziou in the State of Minas 

 Geraes, Brazil, near Pico d'ltabira do Campo. 



Leocereus ? sp. 



Rootstock 1 to 2 dm. broad, flattened, shallow-seated; stems several, erect or ascending, 1111- 

 branched, up to 1 meter long or more, 3 to 4 cm. in diameter; ribs 13 to 15, low, 3 to 4 mm. high; 

 areoles close together, 3 to 4 mm. apart, brown-felted when young; spines yellowish, 20 or more, 

 acicular, about 1 em. long; flowers said to be tubular, 2.5 to 3 cm. long, somewhat hairy; perianth- 

 segments white. 



Collected by Campos Porto, on the Serra do Ouro Branco, Minas Geraes, Brazil, 

 December 1916. 



Fig. 160. — Leocereus 

 bahiensis. 



-Flower of L. 

 Xo 0. 



-Flower of I,. 



