A Grammatical Dictionary of Botanical Latin

difformis,-e (adj.B): deformed, irregularly or unevenly or differently formed, unlike what is usual; of unusual formation or shape, misshapen; “deformed; unusual formation” (Lindley); “of unusual formation or shape” (Jackson); “of unusual form in relation to the normal run of the genus” (Stearn 1996) + dative [> L. difformis, dis- ‘apart’ + forma,-ae, ‘shape;’ see deformis,-e (adj.B); opp. conformis,-e (adj.B) q.v., similar to + dative.

“not conforming to the type; dissimilar in shape or other ways to related species” (Stearn 1996);

Difform (Eng.adj.), different forms; “used to express irregularity” (Paxton);

- specimen difforme Bryothecae europaea no. 457, specimen dissimilar to no. 457 of the Bryotheca europaea [an exsiccat].

- [lichens] Thallus ater lobatus complicato-corrugatus vel crustaceo-difformis, the thallus dull black, lobed, complicate-corrugate [i.e. in complex ridges] or unevenly crustaceous.

- pileis areolas spurias difformes varias efficientibus, with the pilei producing false various, irregular areoles.

- [fungus] Utraque nunc regularis scutelliformis primo intutu sublichenoidea , nunc minus magisve difformis (S&D), each [sc. variety] sometimes regular [i.e. normal or usual], scutelliform, at first sight nearly like a lichen, sometimes more or less abnormal [i.e. unusual, as in shape].

- (fungus) Tuber [virens, a species of the genus Tuber] majus lobato - difforme, filamentis in superficie sparsim decurrentibus (S&A), a Tuber that is larger, lobate-misshapen, with the filaments on the surface here and there decurrent.

- pileus subdifformis , primo planiusculus subumbilicatus , dein margine in stipitem deflexus , uncialis fere, the pileus somewhat deformed, at first rather flat, somewhat umbilicate, ultimately deflexed at the margin into the stipe.

- bacca magna, difformis, cordato-oblonga, corticola, aculéis recurvis muricata (Swartz), the berry large, irregularly formed, cordate-oblong, on the bark, muricate with recurved spines.

- lamellis valde confertis angustis, pileo plus minus difformi subquadrato etc. (S&A), with the lamellae strongly crowded, narrow, with the pileus more or less deformed, nearly quadrate [i.e. square in form].

- sed discus utplurimum e centro communi irregulariter fissus in lacinias saepe triangulares subaequales, attamen nonnumquam etiam quadratas, difformes etc., in marginem erectum dispositas , hiat (S&A), but, for the most part, the disc gapes open [hiat], after being irregularly split into laciniae, often triangular, somewhat uniform, and even sometimes quadrate, of unusual forms etc., arranged on the erect margin.

- [fungus; Peziza] P. fascicularis sessilis minor opaca , cupulis tenuibus patentibus subhemisphaerico - difformibus rugosis. (S&A), Peziza in fascicles, sessile, smaller, opaque, with thin, spreading nearly hemispheric to deformed rugose cupules.

Epidendrum difforme (an Orchid); Pallavicinius difformis, a liverwort; Sabatia difformis (“of two forms; from the original specimen having some flowers with 6 corolla-lobes” (Fernald 1950).