Cultivation of Cacti

Lepismium brevispinum Barthlott 1987

Brevispinum

Heath 1994, Rhipsalis brevispina Barthlott Kimnach 1996 Acanthorhipsalis brevispina F. Ritter 1981, not validly published Plants terrestrial, erect, 1-2 m 3.3-6.6 ft high, branched. Stem segments green, leaflike, 2-3 cm 0.8-1.2 in long, 2-4 cm 0.8-1.6 in wide, 2-3 mm thick, with wavy margins. Areoles in the notches, with brownish wool, scaly. Spines 14, yellowish, 1-2 mm long. Flowers borne singly from the notches, white, to 4 mm long and 3 mm in diameter...

Air Circulation and Ventilation

Air is the source of gases that cacti and other plants use to thrive and grow. It is at night that cacti, with their crassu-lacean acid metabolism, take in carbon dioxide through the stomata in their stems, storing it for use in photosynthesis during the day. Yet it is at night that a greenhouse may be shut tight, and air circulation or ventilation may be needed. Air circulation is simply the movement of air within a plant growing area. Any sort of fan will circulate air. Ventilation introduces...