Leptocereus arboreus Britton and

Rose, Torreya 12: 15. 1912.

Cereus arboreus Vaupel, Monatsschr.

Plants up to 6 meters high, erect, much branched; joints 3 to 10 dm. long, 5 to 6 cm. in diameter, narrowed at base; ribs 4, narrow, thin, 1.5 to 2 cm. deep, somewhat depressed between the areoles; areoles 2.5 to 4 cm. apart or less; spines To or fewer, acicular, yellowish, becoming gray, radiating, the longer up to 5 cm. long; flower short, campanulate, 2 to 3 cm. long; inner perianth-segments short, spreading, greenish white to cream-colored; ovary and flower-tube very spiny; fruit ellipsoid, 8 to 10 cm. long, 5 to 6 cm. in diameter, its areoles bearing tufts of numerous light-yellow spines.

Type locality: Punta Sabanilla, Santa Clara, Cuba.

Distribution: Near southern coast of the Province of Santa Clara, Cuba.

Plate xiii, figure 1, shows the plant collected by Britton, Cowell, and Earle at Castillo de Jagua, Cuba, in 1911, which flowered in the New York Botanical Garden in 1913. Figure 116 shows a fruit of the type specimen.

Fig. 116.—Fruit of Leptocereus arboreus. Fig. 117.—Fruit of Leptocereus sylvestris.

BRITTON AND ROSE, VOL. II. PLATE XIII

BRITTON AND ROSE, VOL. II. PLATE XIII

1. Top of flowering branch of Leptocereus arboreus.

2. Top of stem of Lemaireocereus griseus.

3. Fruiting branch of Mediocactus coccineus.

1. Top of flowering branch of Leptocereus arboreus.

2. Top of stem of Lemaireocereus griseus.

3. Fruiting branch of Mediocactus coccineus.

(All natural size.)

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