. The agricultural species of bent grasses : Part I. -- Rhode Island bent and related grasses. Grasses. 20 BULLETIN 692, U. S. DEPARTMENT OF and three-fourths the length of the lemma, rarely but half the length of the grain, obscurely striate, translucent, showing the grain, more or less adherent to the grain, rarely wholly adherent and transparent and therefore obscured till separated from the grain (fig. 3, 3); veins of the palet often distinct, sometimes scarcely evident; grain oblong in outline, often robust, mostly reddish brown and finely wrinkled, dry and mealy when crushe
. The agricultural species of bent grasses : Part I. -- Rhode Island bent and related grasses. Grasses. 20 BULLETIN 692, U. S. DEPARTMENT OF and three-fourths the length of the lemma, rarely but half the length of the grain, obscurely striate, translucent, showing the grain, more or less adherent to the grain, rarely wholly adherent and transparent and therefore obscured till separated from the grain (fig. 3, 3); veins of the palet often distinct, sometimes scarcely evident; grain oblong in outline, often robust, mostly reddish brown and finely wrinkled, dry and mealy when crushed under slight pressure (fig. 5). SEED OF RHODE ISLAND BENT (AGROSTIS TENUIS SIBTH.; AGROSTIS VULGARIS WITH.). Lemma to of an inch in length, ovate-lanceolate to narrowly lanceolate in outline, narrowly point- ed at the apex, exceeding the grain Fig. 6.—Seeds of Rhode Island bent (Agrostis , « ,, -i j. •, -i ,-, tennis), enlarged and natural size. In seeds by One-fourth Or less of its length, a and 6 the palet is not wrinkled. In seeds not glistening, the Upper half Or more c and d the palet is wrinkled and translucent. n ,i -i • l > l -i In seed e the transparent, closely adherent ©f the lemma translucent and Silvery palet is obscured against the darker grain, white, Opaque toward the base; the (The natural size is shown at/.) P ' j, ,-. i i -i j surface of the lemma glabrous and finely striate longitudinally; the apex of the lemma usually distinctly three angled; an aborted awn occasional from near the apex or rarely not lower than the middle of the lemma, straight, not spirally twisted, rarely equaling the apex of the lemma, such awn-bearing lemmas sometimes four angled at the apex; seeds of some plants all or nearly all bearing similar awns, each awn arising between one-fourth and one- third the length of the lemma from its base, the awn bent near the apex of the lemma and spirally twisted below the bend; the lemmas thus awned four veined at the apex (f
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Keywords: ., bookauthorpi, bookcentury1900, bookdecade1910, booksubjectgrasses
