. Hawaiian Fungi. Fungi. 152 Bernice P. Bishop Museum—Bulletin On Saccharum officinarum "Johnston believes that this fungus has been reported from ;— Caum. DEMATIACEAE-DIDYMOSPORAE 146. CLADOSPORIUM Link. Sp. PI. Fungi vol. 6, p. 39, 1824 See under Phyllosticta colacasiophila, pp. 129-132. DEMATIACEAE-PHRAGMOSPHOREAE 147. HELMINTHOSPORIUM Link. Berl. Mag. vol. 3, p. 10, 1809 No. 352. Helminthosporium cibotii Stevens and Weedon n. sp. Spots 3-7 mm. in diameter, irregularly circular, center tan-colored, shrunken, thin, surrounded by a densely black border 1-2 mm. wide, which sha
. Hawaiian Fungi. Fungi. 152 Bernice P. Bishop Museum—Bulletin On Saccharum officinarum "Johnston believes that this fungus has been reported from ;— Caum. DEMATIACEAE-DIDYMOSPORAE 146. CLADOSPORIUM Link. Sp. PI. Fungi vol. 6, p. 39, 1824 See under Phyllosticta colacasiophila, pp. 129-132. DEMATIACEAE-PHRAGMOSPHOREAE 147. HELMINTHOSPORIUM Link. Berl. Mag. vol. 3, p. 10, 1809 No. 352. Helminthosporium cibotii Stevens and Weedon n. sp. Spots 3-7 mm. in diameter, irregularly circular, center tan-colored, shrunken, thin, surrounded by a densely black border 1-2 mm. wide, which shades off into a pale zone. Fungus hypophyllous. Conidiophores crooked, emerging through the stomata often several from one stoma, simple, short (70 m), black, 7 m thick at base, dark at base, pale at tip. Conidia dark, very crooked, many septate (to 8), 36-55 by 5/*, often attenuated at one end. (See fig. 32.) On Cibotium sp. Oahu: Mt. Olympus, June 10, no. Figure 32.—Conidiophore and three conidia of Helminthosporium cibotii (No. 346) on Cibotium sp. This species is of the same general type as H. gleicheniae, but differs from it in many details as to conidia and conidiophores, and particularly in the character of the spot formed on the host. No. 353. Helminthosporium gleicheniae Stevens and Glick, n. sp. Spots amphigenous, irregular in size, sometimes occupying the whole pinnule. Conidiophores hypophyllous, very dark, erect, thick, stiff, with irregular swellings', fasciculate from the stomata, apex rounded, hyaline, 219-265 by 7-8 m. Conidia dark brown, subclavate, geniculate; 5-9 septate (mostly 8) ; 27-42 by 7-9/^. Mycelium pale- brown, irregularly branched. (See fig. 33, a.) On Gleichenia dichotoma. Oahu: Ahren's ditch trail, June 8, no. 283; Wahiawa, June 3, no. 223; Olympus, June 24, no. 673; Palolo valley and Mt. Olympus, June 10, no. 371. Kauai: Kalalau trail, June 16, no. 509. The septation and dimensions of the conidia are given in Table III:. Please note
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