Despite this abrupt change in flower visitation rate, extrafloral nectaries
continued to attract bees and wasps throughout the day.
1.5 mm diam.; petiole 5-31 mm long, smaller than the rachis; 2 extrafloral nectaries
, brown, stipitate, digitiform, 1-2 mm long, located on the rachis, between the pairs of proximal leaflets; rachis 8-25 mm long; interfoliolar segments 3-12 mm long; leaflets discolorous, 3 pairs, chartaceous, adaxial surface villose, abaxial surface canescent, 10-60 X 5-30 mm, widely obovate, apex rounded, mucronate, base cuneate, venation penninervous.
The reported existence of extrafloral nectaries
The ant community associated with extrafloral nectaries
in the Brazilian cerrados.
Jumping spiders (Salticiade) enhance the seed production of a plant with extrafloral nectaries
. Oecologia 119: 227-230.
(EFNs), for example, occur in 93 flowering plant and five fern families (Koptur 1992).
Independent observations of members of Thomisidae (crab spiders), Salticidae (jumping spiders), and the active, fast-moving Anyphaenidae, Miturgidae, and Corinnidae--all wanderers in foliage--suggest that all feed at the floral and extrafloral nectaries
(EFNs) of plants (Edmunds 1978; Vogelei & Greissl 1989; Pollard et al.
Sugaring: butterfly has proboscis in plant fluids associated with wounds, buds about to open, or extrafloral nectaries
DESCRIPTION OF EXTRAFLORAL NECTARIES
FOUND ON YARD-LONG BEANS, VIGNA UNGUICULATA L.
Observations of ants (Hymenoptera: formicidae) visiting extrafloral nectaries
of the barrel cactus, Ferocactus gracilis Gates (Cactaceae), in Baja California, Mexico.
Often smaller than a grain of salt, extrafloral nectaries
are glands that may be shaped like miniature cups or pegs.