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x, and acuminate, 5-nerved (rarely 3-nerved). The _second glume_ is broadly ovate-lanceolate, concave, acuminate, short awned, 5-nerved with two partial nerves one on each side of the central nerve (7- to 9-nerved at the tip), hairs on nerves, a few tubercled. The _third glume_ is similar to the second, broadly ovate-lanceolate, awned, awn 1/8 to 1/4 inch, paleate with usually three stamens, occasionally neuter. _Lodicules_ are present. The _fourth glume_ is chartaceous, shining, smooth ovate-oblong, apex cuspidate, with a few hairs on the edges at the apex, faintly 5-nerved. The _anthers_ within this glume come out before those of the third glume. _Anthers_ are three, yellowish and _lodicules_ are conspicuous though small. In this grass very often, purple streaks or bands occur across the leaf blades and the sheath and the spikelets become purple on one side as is met with in P. colonum. This grass is occasionally found in the paddy fields either alone, or along with _Panicum Crus-galli_. _Distribution._--Throughout the Madras and the Bombay Presidencies and in Ceylon in wet places especially in cultivated ground and in ditches. Occurs more or less throughout India. [Illustration: Fig. 89.--Panicum colonum.] =Panicum colonum, _L._= This is a slender annual growing to a height of 2 feet. The stems are creeping below, erect above, and with roots in the lower internodes of the decumbent part of the stem, smooth, dull green or partly purplish. The _leaf-sheath_ is glabrous and sharply keeled. The _nodes_ are glabrous or obscurely pubescent. There is no _ligule_. The _leaf-blade_ is narrow, lanceolate, acuminate, glabrous but sometimes tubercle-based hairs occur just on the margin at the base of the leaf-blade close to the white band, varying in length from 1 to 6 inches and in breadth 3/16 to 5/16 inch; the margin is minutely and distantly serrate, midrib is quite distinct and there are three main veins on each side and three or four smaller between main ones. The blades of the lower leaves are narrow at the base and broader at about the middle but those of the upper are equally broad at the base, as well as at the middle. [Illustration: Fig. 90.--Panicum colonum. 1 and 2. The front and back view of the spikes; 1a and 2a. the back and the front view of the spikelet; 3, 4 and 5. the first, second and the third glume, respectively; 6. palea of the third glume; 7 and 8. the fourth glume and its palea; 9.
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