A Grammatical Dictionary of Botanical Latin

aestivalis,-e (adj.B), aestivus,-a,-um (adj.A): pertaining to summer; “of or belonging to summer” (Lindley); see ‘summery, pertaining to summer;’

- coelo pluvio autumali et praecipue aestivali, in autumn rainy weather and especially summer.

- species pleraeque flores producunt dimorpbos, perfectos praecociores saepe steriles, aestívales minutos apétalos v. cryptopetalos fertiliores(B&H), many species produce flowers of two kinds, perfect early-flowering ones that are often sterile, summer (flowering ones) minute, without petals or cryptopetalous, more fertile.

- truncos abietinos aliosque praeamat vulgatior a, folia ac varias quisquilias humi degentes locis praesertim tectis b; utraque aestiva et autumnalis (S&A), it loves very much fir-tree trunks and other [trees], more common a, leaves and various litter living on the ground, especially roofs b; each one of summer and autumn.

- [fungus] non tantum hyemalis est et cellaris; sed et aestivalis sub dio in radicibus caulibusque Brassicae siccis crebra ac gregaria provenit (S&A), not only is it associated with winter and with cellars; but it appears also with summer under the open sky dense and colonial [i.e. clustered] on dried roots and stems of Brassica.

Tortula muralis var. aestiva Brid. ex Hedw.; Triticum aesivum L., Summer Wheat; Leucojum aestivum L.