Asparagales

Walking Iris - Neomarica caerulea

Native to Brazil, though cultivated in many countries, Neomarica caerulea has branching flower stems carrying a succession of spectacular blue blossoms with centers intricately banded in yellow, white, and brown. 

References: [1] - [2]

Photo credit: ©Claire Woods (CC BY-NC-ND 2.0) | Locality: not indicated (2009)

2

Spotted Cucumber Beetle on Curve-Leaf Yucca flower
Diabrotica undecimpunctata / Yucca gloriosa var. tristis (syn. Yucca recurvifolia)

Houston, Texas, United States, 2015

A recent visitor to my garden.

Miniature orchid - Lepanthes escifera 

The miniature orchid Lepanthes escifera (Asparagales - Orchidaceae) only can be found in montane cloud forests in Antioquia, Colombia, at elevations around 2050 m.

These orchids are epiphytic and develop tiny flowers 1.5 to 2.5 cm long, including the long peduncle (1 to 1.5 cm) emerging on top of the leaf.

References: [1] - [2]

Photo credit: ©P. Jean Marc | Locality: unknown (2014)

Geissorhiza splendidissima 

These beautiful flowers belong to the species Geissorhiza splendidissima (Asparagales - Iridaceae), a deciduous geophyte with brilliant dark purple-blue flowers, endemic to the Nieuwoudtville area in Northern Cape, South Africa, and locally known as the Blue pride of Nieuwoudtville.

Reference: [1]

Photo credit: ©Jeffs Bulbesetpots | Locality: cultivated (2014)

Lapeirousia oreogena flowers guide their pollinator to find the way 

Although it seems incredible (as often Evolution is), in the flowers of the South African species, Lapeirousia oreogena (Iridaceae), the clearly visible pattern of six white arrow-markings pointing towards the narrow entrance of the long corolla tube, are visual markings that guide its sole pollinator, a long-proboscid nemestrinid fly, towards a concealed nectar reward.

A study focused on the role of the nectar guides in this species, showed that although the arrow-marking removal has little effect on the approaches by flies to flowers from a distance, it dramatically reduces the likelihood of proboscis insertion.

Reference: [1]

Photo credit: ©jeffs bulbesetpots | Locality: unknown