About Myriopteris newberryi (D.C.Eaton) Grusz & Windham
Myriopteris newberryi (D.C.Eaton) Grusz & Windham has leaves reaching up to approximately 30 centimeters in length, coated in a mat of white, gray, or brownish hairs. Each leaf is divided into smaller subdivided segments; the ultimate segments are oval, mostly flat, and difficult to see clearly due to their thick hair covering. Scattered sori containing sporangia grow on the underside of the leaves, and each sporangium may produce either 64 or 32 spores. In terms of range and habitat, in Mexico this species occurs in extreme northwestern Baja California, ranging from Tecate south to Punta Colonet, and also grows on Guadalupe, a Pacific island off the coast of Baja California. In California, it is found mostly in the coastal mountains starting from the San Bernardino Mountains and extending south, and also grows on San Clemente Island just offshore. It grows in rocky locations within mostly dry habitats, including California chaparral and woodlands. This species can be cultivated, and grows best under high light in well-drained garden soil mixed with sand. The ideal soil for cultivation ranges from moist-dry to moist.