220 



THE CACTACEAE. 



Illustrations: PfeifTer and Otto, Abbild. Beschr. Cact. i:pl. 12; Kngler and Prantl, 



Pllanzenfam. 3'*:f. 58, both as Cereus flagriformis. 



Figure 298 is copied from the first illustration above cited. 



4. Aporocactus conzattii sp. nov. 



Creeping, clambering, or hanging from a support, developing aerial roots here and there; stems 

 12 to 25 mm. in diameter; ribs 8 to to, rather prominent, low-tuberculate ; aeroles 3 to 4 mm. apart; 

 spines 15 to 20, acicular, Hght brown, unequal, the longest 12 mm. long; buds nearly erect, covered 

 with brown acicular spines or bristles; flowers 8 to 9 cm. long; tube nearly straight, red, bearing a 

 few ovate scales, their axils short -woolly and with a few bristle-like spines; limb slightly oblique, 

 with a wide mouth; upper inner perianth-segments arching forward, the lower ones somewhat re- 

 flexed, all narrow, 6 to 7 mm. broad, acute, brick-red; stamens and style shorter than the perianth- 

 segments but exserted from the throat of the flower, long, connivent, nearly white; style slender, 

 still, white, nearly 6 cm. long, not extending beyond the filaments; tube proper 2 to 2.5 cm. long; 

 throat about i cm. long, narrow, bearing stamens all over its surface; filaments numerous, white; 

 flower open for 2 days, remaining open at night. 



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Fig. 299. — Aporocactus conzattii. Xo.66 



i- 



Washingt 



Felipe, Oaxaca, Mexico 



ir A/5orocadM5 martianus, but the inner perianth-segments are not long- 

 acuminate, and the flowers are smaller (at least than those shown in Hooker's illustration). 

 It IS a very valuable mtroduction for greenhouse culture 



Figure 299 is from a photograph of the type plant which flowered in Washington, in 

 1918; figure 300 shows a flower of the same. 

 5. Aporocactus martianus (Zuccarini). 



CercMi mar/ia«M5 Zuccarini, Flora IS': Beibl 66 1832 



Enocereus martianus Riccobono, Boll. R. Ort. Bot. Palermo 8: 240 1909 



areolefr/mm^lar^LinST^o^^^^^^^^ I' ^-^^ ?."^- ^" ^^^"^^^^^^ "^s about 8. low, obtuse; 

 areoles 12 mm. apart, spmes 6 to 8, acicular to bristle-like; flowers a deep rose-color 8 ti 10 cm 



long; outer perianth-segments narrowly lanceolate, acuminate; inner periSth sLmen[^ 

 long-acuminate; style long exserted: fruit lobular, o n^ ir. ^;' ...^^l" .^.^^^^^^''''^ ^'^'^""^ ^^^ 



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