The Cactaceae : descriptions and illustrations of plants of the cactus family . th-segments denticulate. Fruit yellow 6. H. gracilis Fruit orange-red 7. H. simpsonii Hairs of the flower-areoles tawny or brown. Hairs of the flower-areoles 1 to cm. long; color of fruit unknown; spines up to 6 cm. long 8. H. fernowl Hairs of flower-areoles 7 mm. long or less; fruit yellow; spines much shorter 9. H. aboriginum BB. Plants prostrate and pendent on rocks 10. H. earlel AA. Fruit red, often splitting (Eriocereus).Joints aeveral-ribbed or of the joints not tubercled. Pl
The Cactaceae : descriptions and illustrations of plants of the cactus family . th-segments denticulate. Fruit yellow 6. H. gracilis Fruit orange-red 7. H. simpsonii Hairs of the flower-areoles tawny or brown. Hairs of the flower-areoles 1 to cm. long; color of fruit unknown; spines up to 6 cm. long 8. H. fernowl Hairs of flower-areoles 7 mm. long or less; fruit yellow; spines much shorter 9. H. aboriginum BB. Plants prostrate and pendent on rocks 10. H. earlel AA. Fruit red, often splitting (Eriocereus).Joints aeveral-ribbed or of the joints not tubercled. Plants bright green 11. H. torliwsa Plants bluish green 12. H. pomanensis Ribs of old joints strongly tubercled. Central spine 1, much longer than radial spines 13. H. marllnii Spines of nearly the same length 14. H. a&scendens Ribs of the joints low and broad 15. H. platygona Joints 3 to s-angled. Scales of the perianth-tube copiously woolly in the axils 16. H. bonplandii Scales of the perianth-tube scarcely woolly in the axils 17. //. guelichii BRITTON AND ROSE, VOL.
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Keywords: ., bookauthorbrittonn, bookcentury1900, bookdecade1910, bookyear1919
