Flora Desmidiarum Japonicarum IV

188 Minoru HIRA! o: Flora Desmidiarum Japonicarum
circulares, marginibus crenatis, crenis lateralibus 4-5 (cum crenis basalibus),
angulis basalibus rectangulari-rotundis, apicibus truncatis 4-crenatis; a
latere visae paene circulares; a vertice visae ellipticae; membrana glabra,
sed intra totum marginem seriebus radiantibus duobus grqnulorum, in
centro supra isthmum granulis minutis duobus ordinata. Long. 19.6-29.4p,
Lat. 18.2-25.2pa, Lat. isth. 5.6-8.4pa.
Hab. Hondo: Komotsuchi iri Mutsu; Kawashiri, Nishi-numa in Ugo;
Kobuchi-numa in Rikuzen; K6riyama, Kagami-ishi-mura in Iwashiro;
Onjaga-ike in Kamifusa; Higusa-numa in Shimofusa; Toba in Ise; Arigaike,
Rokujizo in Yamashiro; Ikejiri-ike in Tanba. Shikoku: Yamanouchimura
in Sanuki; Shiramizu-pass near Matsuyama in Iyo. Kiushiu: Nakahama
of Lake Ikeda in Satsuma. (New to Asia) (Pl. XXVIII, f. 10)
Distr. Europe, N. America.
var. koreana SKV. in Phillip. Journ. Sci. 49, 151, 1932.
Cellulae maiores, leviter longiores quam latae, granuli quoque maiores,
robustiores. LQng, 31-32pa, Lat. 25-28pa, Lat. isth. 8-11/i.
Hab. Hokkaido : Onne-numa in Nemuro ; Tokotan in Kushiro ; Sarufutsu
in Kitami; Minenobu in IshikarL Hondo: Kanori-ike, Inago of Kitamakimura
in Shinano; Ariga-ike, Shakuhachi-ike in Yamashiro; Ikejiri-ike in
Tanba. Shikoku: Matsuyama, Morimatsu in Iyo. (New to Japan) (Pl.
XXVIII, f. 7, 8)
Distr. Corea.
Cosmarium quinarium LUND. in Nov. Act. Re.Jn. Soc. Ups. III, 8, 28, 1871; WF.sT
Monogr. Brit Derm. 3, 216, 1908; SMITH Wisc. Bull. 57, 36, 1924; DoNAT pflanzenf. 5, 18,
1926; SKuJA Act. Horti Bot. Univ. Latv. 3, 170, 1928; TAyLoR Pap. Mich. Acad. 5ci. 19, 264,
1934; OKADA Bot. Mag. 50, 258, 1936;HIRANo Act. Phytotax. Geobot. 12, 161, 1943.
Cellulae modicae, subhexagonales, circiter lt duplo longiores quam
latiores, profunde constrictae, sinu angusto-lineari in apice aperto; semicellulae
late pyramidato-truncatae, angulis basalibus rotundis, marginibus
lateralibus leviter convexis, apicibus truncatis rectis cum angulis apicalibus
rotundis, marginibus cum granulis parvis acutis 14-15 et infra apicem
cum granulis magnis quaterna in serie horizontali ordinatis, intra angulos
basales granulis minutis 2-3 et in centro granulis magnis 5 in seriebus
duabus (2 subter et 3 supra), inter granulos magnos (5) puncta tria in
formam triangulari ordinatis ; a latere visae paene circulares, apicibus leviter
truncatis, lateribus uti obique ctim tribus granulis magnis et granulis' parvis
in seriebus duabus verticalibus a basi ad apicem, sed ,prope basim granulis
quaternis ordinatis; a vertice visae ellipticae, granulis magnis quaternis