A Grammatical Dictionary of Botanical Latin

procerus,-a,-um (adj.A), compar. procerior,-ius (adj.B), superl. procerissimus,-a,-um (adj.A): very high, tall; slender, long; “very tall, as a tree” (Jackson) [> L. procerus,-a,-um (adj.A), “grown to a great height, tall, lofty; extending to a great length, long” (Glare); see ‘tall;’

- arbor procera, ligno durissimo, a tall tree with very hard wood.

- arbor procera, ligno rubrofusco (B&H), a tall tree, with a dark red wood.

- (moss) plantae procerae late irregulariter, haud orbiculariter, laxissime pulvinatae (Mueller), plants long, broadly irregularly, scarcely circularly, very loosely pulvinate.

- [moss] forma inter se multo minus discrepant muscorum folia quam plantariorum proceriorum (Brid.), the leaves of mosses differ much less among themselves than [those] of the higher plants.

- [Cespedesia] arbores procerae, spectabiles, glaberrimae, ramulis annulatis (B&H), very tall trees, showy, completely hairless, with the twigs [i.e. branchlets] annulate [i.e. marked with rings].

Rubus procerus, elongate, in reference to the canes; Lepiota procera, a mushroom with a long stipe; Urtica procera, i.e. taller than Urtica gracilis; Encalypta procera; Corydalis procera, sp. nov. "The Latin epithet procerus (tall) “is said of plants which are taller than their parts would have led one to expect” (Stearn 1992); Ulmus procera, ‘tall’; Lepiota procera, the Parasol Mushroom has longer stipes than usual in the genus.