A Grammatical Dictionary of Botanical Latin

Bulla,-ae (s.f.I), abl. sg. bulla, nom. pl. bullae, acc. pl. bullas, dat. & abl. pl. bullis: 'a hollow swelling, bubble; a boss, stud; bubble, blister; (algae) “a local outward bulging, clistering, or puckering of the surface” (A&H) [> L. bulla,-ae (s.f.I), any object swelling up, and thus becoming round; a (water) bubble; a boss or knob (as of a plant)]; see knob; see swelling (noun); cf. pustula,-ae (s.f.I), pustule, low projection like a blister or pimple, but larger than a papilla; see blister, bubble;

NOTE: the bullae of fungi may bear generative organs or structures.

NOTE: stud (Eng.noun): a large-headed piece of metal that pierces and projects from a surface, especially for decoration; studded (Eng.adj.): something decorated or augmented with many studs or similar small objects (Wikipedia Mar2019).

- globuli quo magis extremitatibus appropinquant, eo sensim minoribus, exacte rotùndis, monile seu bullas collares quadantenus referentibus, mucilagine quadam invicem connexis (Dill.), in which place [= quo] the globules draw more near to the extremities, in that direction [= eo] they are gradually smaller, completely rounded, somewhat resembling a necklace or collar bullae [i.e. collar studs (ornaments)], mutually [= invicem] connected by a kind of mucilage.

- cellulae bullis praeditae, cells provided with bubbles (gas vacuoles).

- [fungi] saepe, a sole praesertim justo citius tacta et exusta, in bullas varias corneas solidas pulvere destitutas indurata (S&A), often, especially if more quickly touched and dried out by a moderate sun, hardened into various bullae [i.e. blisters], with the texture of horn, solid, lacking dust [i.e. spores].

- [Aecidium asperifolii; fungi] bulla insignis, substantia caulis interiore (cortice, libero, medulla) distenta laxiore farcta (S&A), the bulla is conspicuous, more loosely packed with the distended interior substance of the stem (the cortex, the liber [i.e. the part lying inward from the cortex], the medulla [i.e. the pith]).

- [fungi] bullae in caulibus, petiolis, foliis bullae passim (saepe frequentissimae et confluentes) prominent subovatae flavidae: e quibus pulveris spadicei grossi inquinantis erumpunt glomeruli, initio subsolitarii, annulatim plerumque bullam suam cingentes, deinde centrales etiam totumque caespitem confluendo explentes, forma subrotunda seu oblonga (S&A), the bullae here and there on stems, petioles and leaves (often most dense and running together) prominent, nearly ovate, yellowish, from which burst out balls of a thick powder staining chestnut-brown, in the beginning somewhat solitary, annulately surrounding its own bulla, then the central ones, even the whole clump by flowing together, with a nearly rounded or oblong shape.

Bulla,-ae (s.f.I), type genus of the Bullidae; Bull ampulla, a marine Gastropod Mollusc; Bulla gouldiana, Gould’s Bubble Snail.

Lecane bulla, a fresh-water Rotifer, Lecanidae.