rachilla

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rachilla

(rə-kĭl′ə)
n. pl. ra·chillae (-kĭl′ē)
The axis of a spikelet of a grass or sedge.
References in periodicals archive ?
2006) observed only staminate flowers in the apical rachillae of four of the seven inflorescences of Astrocaryum aculeatum studied, which is a new finding for this species.
Table 1--Measurements for length of the rachillae inserted in the base, middle and apex of the rachis of the inflorescence, mean (Mean), maximum (Max.
caryotifolia), from which he separated it on account of the spinulose fruits, the abundant yellowish spinules on the infructescence, the rachillae not curved at the insertion of each staminate flower, the larger fruits and fruiting perianth, and the pinnae more abruptly and strongly broadened.
1 mm long, and scattered spines up to 1 cm, mostly near base; rachillae 54-62, densely spinulose; basal rachillae 17-20 cm long, with a basal sterile portion up to 12 mm, with triads in the basal 1/3-1/4 their length; apical rachillae ca.
5 length/width ratio Number of rachillae 8-13 15-180 Insertion of rachillae Evenly spaced Widely 3-4 cm apart separated along the proximallly, rachis densely crowded distally Pollen Spiny With densely positioned, sparsely fusing supratectal clavae Table 2.
Epicarp covered in indument, setose or spiny; pistillate flower usually one per rachilla (some rachillae, usually those located at the base of the rachis, are sometimes found with 2-3 flowers in the most vigorous plants)--21
Acaulescent or subacaulescent (to short-stemmed) palms; petiole rusty-red tomentose; rachis up to 30 cm long, bearing up to 70 rachillae up to 20 cm long--14
Palms with large stems; petiole not rusty-red tomentose; rachis usually longer than 40 cm, bearing more than 90 rachillae usually longer than 25 cm--15
Length of the leaves up to 1 m; peduncular bract covered with velvet, not spiny; rachillae ca.
4), peduncular bract thin, staminate flowers spirally arranged on staminate rachillae and dispersed fibers within a thin endocarp (Fig.
phalerata complex but have spirally arranged staminate flowers on staminate rachillae similar to those of the A.