graminearum colonization in
glumes appeared three days after inoculation.
Each lateral spikelet emerges from the axillary bud of a bract, bearing a prophyll and a varying number of
glumes arranged on an open axis (rachilla); some or all of these
glumes develop an axillary flower, so some taxa have empty
glumes, while in other taxa each
glume carries a flower.
Glumes persistent; higher
glumes elliptic, 1.5-3.0 x .5-1.0 mm; lower
glumes lanceolate, 1-2.5 x 0.5-0.8 mm, veined, keeled, keel with wing.
Spikelets with unequal and acuminate
glumes; lower
glume 2-2.7 mm long; upper
glume 3.3-4.3 x 1.3-1.6 mm, acuminate.
The former is a tall perennial plant with long leaf blades and the second
glume is shorter than the spikelet.
3), longer and wider first and second
glumes, longer first and second
glume awns, longer and wider lemmas and lemma awns (Table 2).
4-7
glumes are sterile, the lowest fertile
glume bears a pistillate
In species of Scleria, the
glumes are disposed distichously in the pistillate spikelets, while the subandrogynous spikelet, staminate spikelet, and androgynous spikelet have one proximal portion with
glumes disposed distichously and one distal portion with
glumes disposed spirally (Camelbeke, 2002; Ahumada & Vegetti, 2009); this arrangement of the
glumes is also characteristic of the bisexual spikelets of Abildgaardia ovata.
In the distal part of a spikelet in Lepidosperma tetraquetrum, the flowers are dislocated with respect to their subtending
glumes (Fig.
In general, HT621 looks like hexaploid wheat although it is not free threshing because it has a brittle rachis and hard
glumes. HT621 had an average plant height of 112 cm, 20 cm taller than durum wheat 'Simeto' and 22 cm taller than bread wheat 'Cartaya'.
They all have hermaphrodite, trimerous flowers, with each subtended by a papery
glume.
Glumes are spirally or distichously arranged in the spikelets, apart from some reduced species in which the arrangement is obscure.
The inflorescence of Jerome is awned, middense, tapered, with
glumes that are midwide, long, and with elevated shoulders and acuminate beaks.