Cordes (Ancient Greek: Κόρδης)[1] was a small stream of Mesopotamia which rose in the Mons Masius, and was a tributary of the Chaboras, itself a tributary of the Euphrates. The town of Dara was situated upon its banks.
Justinian's engineers diverted the river towards the city by digging a canal. The river now flowed through the city, ensuring ample water supply. At the same time, by means of diverting its flow to an underground channel which exited 65 km (40 mi) to the north, Dara's garrison was able to deny water to a besieging enemy, a fact which saved the city on several occasions.[1]
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This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Cordes". Dictionary of Greek and Roman Geography. London: John Murray.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
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