B. Papp szerk.: Studia Botanica Hungarica 32. 2001 (Budapest, 2001)

Langangen, A.; Leghari, S. M.: Some charophytes (Charales) from Pakistan

References to Pakistan: PAL et al. (1962) gives one locality in Lyaree river, Karachi. General: Plants monoecious, up to 20 cm high. Totally ecorticated, stipulodes in a single tier, short, irregular. Gametangia normally sejoined. Comments on studied plants: Up to 30 cm high. Slightly encrusted specimens in localities 2, 4 and 5. Stipulodes missing or only partly developed. Bractcells developed on branchlet nodia and are as long as the oogonia. Specimens normally richly fertile. Oogonia at base of whorl, both on the inside and the outside. On the outside they replace the stipulodes. Oogonia also solitary on branchlet nodes. Antheridia normally solitary on the first branchlet nodes. Both antheridia and oogonia stipitated. Ripe, black oospores found in March, September and October. Round, white bulbils, 0.75 mm in diameter in material from localities 3 and 4. Ecology: Saline and brackish water. In Lakki sulphur hot spring the species has been found in water to 35 °C (KHUHAVVAR et. al. 1986). Distribution: Lamprothamnium succinctum is not common in the Indian continent. It was first reported by DIXIT (1931) in saline water in Salsette, Bombay, and later from Lyaree river near Karachi (PAL et al. 1962). Later it has also been found in Bihar province of India (KHAN 1980). The distribution in Pakistan is shown in Figure 5. Chara wallichii A. Braun Locality (1): Prov. Sindh: Hyderabad, Chalgari, River Indus (flood water pond), 10.2.1998. References to Pakistan: FARIDI (1955). General: Dioecious, up to 25 cm high. Axes to 1.1 mm in diameter. Totally ecorticated. Stipulodes rudimentary. Bract-cells large, verticillate. Gametangia at base of whorl as well as on lower branchlet nodes. Antheridia to 1 mm in diameter, tetrascutate. Comments on studied plants: Up to 10 cm long with axes of 0.6 mm and internodia up to 3 cm long. Stipulodes absent. Plants slightly encrusted. Only male plants, all with antheridia in abundance. Antheridia clustered at base of the whorls and at all nodia of the branchlets. At the basal nodium antheridia both on the outside and the inside. Antheridia up to 1 mm in diameter. Ecology: Freshwater, often in flood water ponds. Distribution: FARIDI (1955) reports the species from northern Pakistan (Lahore, Rawalpindi) (Fig. 6). It is elsewhere found in India (PAL etal. 1962), and in Burma (PAL 1931).