• FRESa-WATEB ALG.E FROM BOBMA.
SYSTEMATIC.
C l a s s : C H L O R O P H Y O E ^.
Order : CEDOGONIALES.
Family: (E DOAONIACE^-
Genus : (Edogonium Link.
1. (Edogonium sociale Wittr. in Wittr. & Nordst. Alg. Exsic. fase. 9, 1882,
No. 401; fase. 21, 1889, p. 4; Hirn, Monogr. u. Icouogr, CEdogon. 1900,
p. 79, t. 2, f. 12.
Crass, cell. 7eget. 15-17 altit. 3-4.plo major;
„ oogon. 38>i ; „ 35/t.
„ oell. aatberid. 13-14-5^ ; „
i/flè.—Back-waters and banks of the Iri'awaJdy at Bhamo (No. 21502).
2. (Edogonium capitellatum Wittr. Prodr. Mooogr. CEdogon. 1874, p. 7; Hivn,.
1. c. 1900, p. 149, t. 23, £. 118.
Forma oogoniis 2-4 coutinuis et cellulis suSultoriia crassioribua.
Grass, cell, veget. 7-5-9-7/i; altit. 3i-5.plo major;
„ cell, sufiult. 8-5-11 m; .. 2i-4-plo „
„ oogon. 20-22 ,, 2CW23
„ oospor. 18-20 „ 14'5-16 ju
fiaJ.—Mansang near Hsipaw, in marshes (No. 24193).
3. (Edogonium oblosgellum Kirchn. in Hirn, 1. c. 1900, p. 182, t. 29, f. 177.
Crass, celi, veget. 67-8 ^ ; altit. 3-5èplo major ;
„ oogon. 16-5-17ii; „ 20-25 fi;
„ oospor. 15-3 p.) „ 18-22 a;
„ ceU. antherid. 5-7-7 ; „ 3-5-4-3 /x. (PI. xi, figs. I, 2).
ffab.—Backwaters and banks of the Irrawaddy at Bhamo (No, 21502).
The aQtheridia were 2—4-ceUed, and the oospores were somewiiat smaller than in the origin:il
t^erman plants.
4. (Edogonium longicolle Nordst. Alg. aq. dulc. et Char. Sandvic. 1878, p. 20,
t. 2, f. 11, 12; Hirn, 1. c. 1900, p. 263, t. 45, f. 278.
Var. Sekegalfkse Nordst. Alg. et Char. I, 1880, p. 13, t. 1, f. 23.
Crass, cell. Teget. 5'5-7 fi ; altit. 3i-4i-plo major ;
„ oogon 17-19/1; „ 16-21 f^-,
„ oospor. 15-17/i; „ 12-5-13-5/4.
Uab.—Mansang near ITsipaw (No. 24193).
This occurred akindantly, and the oogonia were 2-6-Eeriate. No androsfGrangia or DsaQandria
were obserred.
KKRrOSTElKON. 181
A uumuer of steriW species of CEdogonium were observed from MomauV, east of
Bhamo (No. 21551), Kyauktaga in the Pegu district (No. 22124), Manp^'e, N. Shan
States (No. 22513), Katha (No. 22677), and in the Kan-gyi at Mudon (No. 24o0.->).
Genus: Buibochcete Ag.
5. Bulbocilete liLATioii Priugsb., 1858; Wittr. Prodr. Monogr. CEdogon, 1874,
p. 49; Hirn., I.e. 1900, p. 321, t. 51, f. 327.
Forma f^jmila Hirn, 1. c. p. 322, t. hi, f. 32«.
Crass, cell. Teget, 10-5-12^; altit. 2-3-plo. major;
„ oogou. 3.V; „ 28^;
„ cell, audrosp. 11/t; „ S^;
£a5.-M8,nsang ncai- Hsipaw (No. 24193).
A steiile species of BulhochmU was observed from Momauk, east of Bhaico
(No. 21551).
Order: CH^ETOPHORALES.
Family: COLEOOHjETAOE^-
Genus : Coleoch(Bte Breb.
6. COLEOCII^TE SCUTATA Breb. ; liabeiih. flor. Europ. A)g. 1868, iii, p. 390.
iiaJ.—Mansang near Hsipaw (No. 24193).
Family : HERPOSTEIKACEIEGenus:
Herposteiron Niig.
7. Herposteiros cokfekvicola Niig., 1849.
Aphanoahcete repens A. Pr., 1851;
Berposieiron repens (A. Br.) "Wittr.
Long. cell. 8^15/^; lat. cell. 4-8-12-5^; diam. oogou. 14'5-17a. ; diam. antherid. 4-5-7^.
(PI, X, figs. 1-4).
iifli».-Near the river at Bhamo; epiphytic on a sterile species of Spirog^/ra
.(No. 21503).
The plants obserted were of interest on account of the presenco o£ tbe eexual organs. The
latter were Brst described by Huber. and have very rarely been seen. The oogonm %vere 611ed
with oily material giving them a very refractive appearance, and when ready for espellmg the
oospbeve were almost globulai' in sbape. The antberidia were not invariably terminal at tbe extrenaities
of tbe brancbe., but were occasionally developed torn tbe side of a median cell of the
filament. Since • examining tbe antheridia, we are inclined to regard them as consisting of-from
•one to throe cells, from each of which one or two i-ciliated antberozoids are ultimately set free.