Crinum calamistratum

Crinum calamistratum is a bulbous plant from western Cameroon that was collected in a river near Kumba; its occurrence appears to be very limited.¹ The species name translates as “crinkled”, which matches the crisped margins of the dark green, ribbon-like leaves; although only 0.2–0.7 cm wide, these reach 70–100 cm or, according to other sources, 40–120 cm in length.¹²³ One hobbyist name for it is Crinum natans “crispus”.¹

Compared with C. natans and C. thaianum it grows much more slowly and reacts very badly to replanting; a nutrient-rich substrate at least 8 cm deep and tanks at least 50 cm tall are advisable, and strong water movement appears to benefit it.¹ Statements on its light requirement conflict: low, medium and more than other crinums are all given.¹²³ Daughter bulbs form mainly on large, older plants, whereas fruits are rare.¹³