English: Compsopogon oishii. Fig. 1: fronds of Compsopogon oishii Okam. sp. n. on the leaf of Calisneria spiralis in nat. state and size.--Fig. 2: smal frond, 8/1--Fig. 3: portion of fig. 2, marked a' magd., 220/1.--Fig. 4: lower portion of a youn gfilament, 140/1.--Fig. 5: portion of the lower part of frond in fig. 1, magd., 220/1---Fig. 6: portion of a thicker branch, a little thicker than 400 u, 390/1.--Fig. 8: portion of fig. 7 showing monospores, 340/1.--Fig. 9: monospores, 340/1.--Fig. 10: vegetative cell, 340/1.