gemmation(n = noun.process) pullulation - asexual reproduction in which a local growth on the surface or in the body of the parent becomes a separate individual;
is a kind of agamogenesis, asexual reproduction

1.  The formation of a new individual, either animal or vegetable, by a process of budding; an asexual method of reproduction; gemmulation; gemmiparity. See Budding. [1913 Webster]

2.  The arrangement of buds on the stalk; also, of leaves in the bud. [1913 Webster]

gemmation, n. reproduction by gemmae.

Etymology:
F f. gemmer to bud, gemme bud

N  expansion, increase of size, enlargement, extension, augmentation, amplification, ampliation, aggrandizement, spread, increment, growth, development, pullulation, swell, dilation, rarefaction, turgescence, turgidness, turgidity, dispansion, obesity, hydrocephalus, hydrophthalmus, dropsy, tumefaction, intumescence, swelling, tumor, diastole, distension, puffing, puffiness, inflation, pandiculation, dilatability, expansibility, germination, growth, upgrowth, accretion, budding, gemmation, overgrowth, overdistension, hypertrophy, tympany, bulb, plumper, superiority of size, big bang, Hubble constant, expanded larger, &c (large), swollen, expansive, wide open, wide spread, flabelliform, overgrown, exaggerated, bloated, fat, turgid, tumid, hypertrophied, dropsical, pot bellied, swag bellied, edematous, oedematous, obese, puffy, pursy, blowzy, bigswoln, distended, patulous, bulbous, full blown, full grown, full formed, big, abdominous, enchymatous, rhipidate, tumefacient, tumefying.