A Grammatical Dictionary of Botanical Latin

Locusta,-ae (s.f.I), abl.sg. locusta: locusta, the spikelet of a grass; “ a spikelet of Grasses; that is to say, one of the collections of florets formed in such plants” (Lindley); “the spikelet in grasses” (Jackson); a kind of indefinite or indeterminate inflorscence with an elongate primary axis including the glumes, palea, awn of grasses and sedges [> L. locusta,-ae (s.f.I), a grasshopper; “a marine shell-fish, a lobster” (Lewis & Short); “a locust; a crustacean, prob. a kind of lobster; locusta marina or locusta maris” [of the sea, i.e. sea locust or sea grasshopper] (Glare); see spikelet; cf. lacerta,-ae (s.f.I) ‘lizard; mackerel.’ Locusta,-ae (s.f.I): “a genus of short-horned grasshoppers including the common migratory locust of the Old World” (WIII).

- [Aira articulata] gramen panicula miliacea, locustis minimis (Desf.), a grass with a millet-like [i.e. miliaceous] panicle, with the locustae [i.e. spikelets] minute [i.e. tiny].

- [Poa divaricata] gramen perexile marcoticum humillimum, locustis eleganter atque distincte positis (Desf.), a grass very thin, marcotic, extremely low, with the spikelets elegantly and distinctly arranged [i.e. standing at a definite distance from one another].

- Poa locustis teretibus, multifloris; glumis floralibus exterioribus truncatis; interioribus bifidis (Desf.), a Poa with the locustae [i.e. spikelets] terete [i.e. rounded-cylindrical] with many flowers; with the outer floral glumes truncate, the interior ones bifid.

- gramen avenaceum, locustis villosis crassioribus angustis candicantibus et aristatis (Desf.), an avenaceous [i.e.wheat-like] grass, with the locustae villous, thicker, narrow, whitish and aristate [i.e. awned].

- Bromus hirsutius; locustis septifloris (Desf.), Bromus, somewhat hirsute; with the locustae with seven flowers.

Valeriana locusta, a plant with a “dichotomous stem, or stem which continually and regularly divides by pairs, from the top to the bottom” (Barton).