The Chlorophyceae of the Benares district, India—I

THE CHLOROPHYCEAE OF THE BENARES DISTRICT, INDIA--I

BY VIJAY PRATAP SINGH, M.Sc. (From the Department of Botany, Benares Hindu University)

Received May 27, 1941 [Communicated by Prof. Y. BhgradwKja, M.sc., rh.D. (London), F.L.S., F.N.L]

THE present communication deals with some of the Chlorophyce~e collected from Benares and its environs during the years 1939, 1940 and 1941. In all twenty-one forms representing sixteen genera have been described, and out of these three forms are new.

SYSTEMATIC ENUMERATION OF THE SPECIES OBSERVED

CHLOROCOCCALES

Hydrodictyaceae

Genus Hydrodictyon Roth.

1. Hydrodictyon reticulatum (L.) Lagerheim. Lemmermann, Briinn- thaler und Pascher, in Pascher's Si~sswasser-Flora Deutschlands Osterreichs und Der Schweiz, Heft 5, 1915, p. 106, Fig. 68.

Lat. coenocyte., 168.9-192/~; long. coenocyte., up to 3 mm.

Habitat.--In a stagnant shallow pond, Bawanpokhari. (Dec. 1940)

ULOTRICHALES

Ulotrichaceae

Genus Ulothrix Kuetzing

2. Ulothrix zonata Kuetz. Heering, in Pascher's Siisswasser-Flora Deutschlands Osterreichs und Der Schweiz, Heft 6, 1914, pp. 34 and 35, Figs. 35-36.

Lat. cell., 18.4-43/~.

Habitat.--In a shallow pond, Bawanpokhari. (Feb. 1941)

Ulvaceae

Genus Enteromorpha (Link) Harvey

3. Enteromorpha prolifera Agardh. Heering, op. cit., Heft 6, 1914, p. 26, Fig. 24.

256

The Chlorophycec~e of the 17e~za~'es Dislrict, ]nctia--Z 257

Forma

Diam. cell., 12.2-16"7/~.

Habitat.--In a shallow pond, Bawanpokhari. (Feb., 1941)

The form differs from the type in the broader cells.

CLADOPHORALES

Cladophoraceae

Genus Rhizoclonium Kuetzing

4. Rhizoclonium hieroglyphycum (Agardh) Kuetz. Heering, op. cit., Heft 7, 1914, p. 22, Figs. 21, a, b, c.

Lat. ill., 26.9-30"7tz.

Habitat.--In a stagnant pond, Bawanpokhari. (Feb., 1941)

Genus Cladophora Kuetzing

5. Cladophora crispata (Roth.) Kuetz. Heering, op. cit., Heft 7, 1914, p. 40, Fig. 40.

Lat. ill. main., 91 �9 1 t z.

Habitat.--Along with Cladophora fracta Kuetz., Bawanpokhari. (Oct., 1940)

6. Cladophora fracta Keutz. Heering, op. cit., Heft 7, 1914, p. 43, Fig. 41.

Lat. ill. main., 88.3-115.7tL.

Habitat.--Along with Cladophora crispata, Bawanpokhari. (Oct., 1940)

CHAETOPHORALES

Chaetophoraceae

Genus Chaetophora Schrank

7. Chaetophora elegans (Roth.) Agardh. Heering, op. cit., Heft 6, 1914, p. 94, Figs. 137-40.

Lat. cell., 6 .4-9.6 #; long. cell., up to 5.8/z.

Habitat.--Epiphytic on dead aquatic leaves, Botanical Garden Pond. (Jan., 1939)

Genus Stigeoclonium Kuetzing

8. Stigeoclonium tenue Kuetz. (Sammelart). Heering, op. cit., Heft 6, 1914, p. 79. Fig.

Lat. cell., 6-8.7/x; long. cell., up to 22/z.

Habitat.--Epiphytic on Oedogonium sp., Bawanpokhari. (Dec., 1939)

258 Vijay Pratap Singh

Trentepohlieae

Genus Trentepohlia Martius

9. Trentepohlia odorata (Wiggers) Wittrock. Heering, op. cit., Heft 6, 1914, p. 120, Fig. 174.

Lat. cell., 7.7-15.3/z; long. cell., 11.5-21.2/~; lat. gametan., 8.4- 19.2/~; long. gametan., 19.2-30.7/~.

Habitat.--On the bark of Mangifera indica, Bawanpokhari. (Feb., 1941)

Coleochaetaceae

Genus Coleochaete Brebisson

10. Coleochaete pulvinata Braun. Heering, op. cit., Heft 6, 1914, p. 132, Figs. 187-88.

Lat. cell., 15.4-19.2t~; long. cell., up to 28/,; crass, oosp. cure rag., 72.9-96'2 tz ; crass, oosp., 42.3-57- 6/~.

Habitat.--Epiphytic on Hydrilla leaves, Bawanpokhari. (Feb., 1941).

The alga differs from the type in the narrow vegetative cells and oospores.

11. Coleochaete scutata Brebisson. Heering, op. cit., Heft 6, 1914, p. 136, Fig. 194.

Lat. cell., 11.5-26.9/z; long. cell., up to 40/~; crass, oosp., 50- 1-57.6/~; long. oosp., 61.4-71.2/z.

Habitat.--Epiphytic on Hydrilla leaves, Bawanpokhari. (Feb., 1941)

The alga differs from the original type in shorter cells and oospores.

Pleurococcaceae

Genus Pleurococcus Meneghinii

12. Pleurococcus Naegelii Chodat. Fritsch, The Structure and Repro- duction of the Algae, Vol. I, 1935, p. 288, Fig. 90, d-h.

Lat. cell., 8.4-12.2/~; long. cell., 7.7-9.6/~.

Habitat.--On the bark of a tree, Bawanpokhari. (Feb., 1941)

CONJUGALES

Zygnemoideae

Genus Zygnema Agardh

13. Zygnema normani Taft. var. lamellata Rao. Rao, " The Zygne- moideae of the United Provinces, India--I ," Jour. Ind. Bot. Soc., Vol. 16, No. 5, 1937, pp. 269-88, Figs. 2, A and B.

T/~e CMoropkyceae of t~e Benares District, India--u 259

Porma

Lat. cell., 26.8-32.6ix; long. cell., 38.4-96ix; lat. zygosp., 30.7-38.4ix; long. zygosp., 31.4-57.6 ix.

I-Iabitat.--Free-floating in Bawanpokhari. (Feb., 1940)

The form differs from the type in much broader filament and in the many narrower scrobiculations on the mesospore.

Genus Spirogyra Link

14. Spirogyra Weberi (Kuetz.) Czurda. Czurda in Pascher's S~sswasser-Flora Mitteleuropas, Heft 9, 1932, R. 154, Fig. 153.

Porma

Lat. cell., 42.3-46.6 tx ; long. cell., 212-39 ix ; lat. zygosp., 42.2-48.6 ix; long. zygosp., 75-92ix.

Habitat.--Free-floating in Bawanpokhari.

The form differs from the type in broader cells and much bigger zygo- spores.

Genus Sirogonium Kuetz.

15. Sirogonium stricture Kuetz. Czurda, op. cit., Heft 9, 1932, p. 144, Fig. 142.

Lat. cell., 42.2-46 ix; long. cell., up to 4 times ; lat. zygosp., 53.8-65.8 ix; long. zygosp., 76.8-107.5 ix.

Habitat.--Free-floating in Bawanpokhari.

NIPHONALES

Vaucherioceae

Genus Vaucheria De Candolle

16. Vaucheria uncinata Kuetz. Heering, op. cit., Heft 7, 1914, p. 91, Fig. 82.

Lat. ill., 70-96.8ix; crass, oosp., 65-76ix; long. oosp., 20-76.8ix.

Habitat.--On the bank of river Barna.

CHARALES

Nitelleae Genus Nitella Agardh

17. Nitella hyalina (De Candolle) Agardh. Groves and Bullock- Webster, British Charophyta, 1920, Vol. I, P1. XVI; Pal, " Burmese Charo- phyta," Jour. Linn. Soc. Bot., 1932, Vol. XLIV, No. 327, p. 67, P1. 8;

260 Vijay Pratap Singh

Dixit, " Charophyta of Bombay Presidency--II," Your. Ind. Bot. Soc., Vol. XVIII, Nos. 4-6, 1940, pp. 231-39.

Diam. anth., 265-364.2/z; crass, oog., 324-96 ~; long. oog., 257.9- 396.4/z; crass, oosp., 265-80tz; long. oosp., 200-65#.

Habitat.--Bawanpokhari.

Chareae

Genus Chara Linnaeus

18. Chara corallina Willdenow. Pal, op. cir., 1932, p. 80; Dixit, op. cir., 1940, p. 235.

Lat. stem., up to 850/z; lat. anth., 648-747.9/z; long. anth., 664.8- 914.1/z; lat. oog., 998.7-1163.4tz; long. oog., 1180-1498/z; lat. oosp., 997.9-1160 tz; long. oosp., 1160-1495/z.


19. Chara Wallichii Braun. Pal, op. cir., 1932, p. 79, Pls. 14 and 15.

Lat. stem., up to 900/~; lat. anth., 512.2-947.5#; long. anth., 531-8- 997 it; lat. oosp., 965.9-1030/~; long. oosp., without cornula., 1030-1246 t~.


20. Chara Brachypus Braun. Pal, op. cir., 1932, p. 87; Dixit, op. cir., 1940, pp. 237-38.

Lat. stem., 450-500/z; diam. anth., 320-50 tz; crass, oog., 540-600/z ; long. oog., 760-835/z; lat. oosp., 350-400/~; long. oosp., 389-550tz.


21. Chara zeylanica Willdenow. Pal, op. cir., 1932, p. 88; Dixit, op. cir., 1940, p. 238.

Lat. stem., 650-795.5 it; diam. anth., 280-320 it; crass, oog., 400-540 tz; long. oog., 700-900/z; crass, oosp., up to 380t~; long. oosp., 580-700#.

Habitat.--Bawanpokhari. (Feb., 1941)

In conclusion, I have much pleasure in expressing my great indebted- ness to Professor Bharadwaja, for his kind guidance and criticism throughout the course of this investigation.

The Chlorophyceae of the Benares district, India—I

Documents

Transcript of The Chlorophyceae of the Benares district, India—I