Saturday, 30 May 2020

DESKTOP 2494 - BUTTERFLIES

Butterflies reproduce the way other animals do - sperm from a male fertilises eggs from a female. Males and females of the same species recognize one another by the size, color, shape and vein structure of the wings, all of which are species specific. Butterflies also recognize each other through pheromones, or scents.

During mating, males use clasping organs on their abdomens to grasp females, as you can see in the photo. Many male butterflies deliver more than just sperm to their mates. Most provide a spermatophore, a package of sperm and nutrients the female needs to produce and lay eggs. Some males collect specific nutrients to produce a better spermatophore in an attempt to attract a mate. 

Some females, however, don't have a choice -- in some species, males mate with females before they have left their chrysalis or swarm the chrysalis waiting for the female to appear. In most species, males and females look a lot a like, but females often have larger abdomens for carrying their eggs.

This post is part of the Saturday Critters meme.

Thursday, 28 May 2020

DESKTOP 2492 - PANSY ORCHID

Miltonia, abbreviated Milt. in the horticultural trade, is an orchid genus formed by nine epiphyte species and eight natural hybrids inhabitants of the Brazilian Atlantic Forest, one species reaching the northeast of Argentina and east of Paraguay. This genus was established by John Lindley in 1837, when he described its type species, Miltonia spectabilis. Many species were attributed to Miltonia in the past, however, today, the species from Central America and from cooler areas on northwest of South America have been moved to other genera.

Miltonia species have large and long lasting flowers, often in multifloral inflorescences. This fact, allied to being species that are easy to grow and to identify, make them a favourite of orchid collectors all over the world. Species of this genus are extensively used to produce artificial hybrids. Despite the fact that Miltonia is now a well established genus, most of its species were originally classified under other genera as Cyrtochilum, Oncidium, Odontoglossum, and Brassia. All were discovered between 1834 and 1850 with the exception of M. kayasimae, discovered only in 1976.

These epiphytic orchids occur from Central to Southern Brazil down to Argentina. They are named after Charles Wentworth-Fitzwilliam, 5th Earl Fitzwilliam, formerly Viscount Milton, an English orchid enthusiast. These orchids have two leaves, arising from a pseudobulbs, covered with a foliaceous sheath. The inflorescence consists of waxy, nonspurred flowers. The lip is large and flat and lacks a callus at its base. They possess a footless column with two hard pollinia. The flowers have a delicate, exotic scent, some compare to that of roses. The species in this genus are sometimes referred to as the "pansy orchids", but it is the Miltoniopsis orchids that have flowers that closely resemble the pansy. Almost everyone except for the most serious orchid hobbyists use the name pansy orchids interchangeably, which may cause confusion.

This post is part of the Floral Friday Fotos meme.

Wednesday, 27 May 2020

DESKTOP 2491 - MOSS

The recent rains we've had have certainly made for a lush awakening of the winter growing weeds and lower plants, like this moss sprouting on the trunk of a felled tree.

This post is part of the Wordless Wednesday meme,
and also part of the My Corner of the World meme.

Tuesday, 26 May 2020

DESKTOP 2490 - PARIS, FRANCE

The Eiffel Tower (French: tour Eiffel) is a wrought iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower. Constructed in 1889 as the entrance to the 1889 World’s Fair, it was initially criticised by some of France's leading artists and intellectuals for its design, but has become a global cultural icon of France and one of the most recognisable structures in the world.

The tower is the tallest structure in Paris and the most-visited paid monument in the world: 6.98 million people ascended it in 2011. The tower received its 250 millionth visitor in 2010. The tower is 324 metres tall, about the same height as an 81-storey building. Its base is square, 125 metres on a side. During its construction, the Eiffel Tower surpassed the Washington Monument to become the tallest man-made structure in the world, a title it held for 41 years until the Chrysler Building in New York City was built in 1930.

Due to the addition of the aerial at the top of the tower in 1957, it is now taller than the Chrysler Building by 5.2 metres. Not including broadcast aerials, it is the second-tallest structure in France, after the Millau Viaduct. The tower has three levels for visitors, with restaurants on the first and second. The top level’s upper platform is 276 m above the ground, the highest accessible to the public in the European Union.

Tickets can be purchased to ascend by stairs or lift to the first and second levels. The climb from ground level to the first level is over 300 steps, as is the climb from the first level to the second. Although there is a staircase to the top level, it is usually only accessible by lift.

This post is part of the Our World Tuesday meme,
and also part of the Ruby Tuesday meme,
and also part of the Travel Tuesday meme,
and also part of the Wordless Wednesday meme.

Saturday, 23 May 2020

DESKTOP 2487 - WILLIE WAGTAIL

The willie (or willy) wagtail (Rhipidura leucophrys) is a passerine bird native to Australia, New Guinea, the Solomon Islands, the Bismarck Archipelago, and Eastern Indonesia. It is a common and familiar bird throughout much of its range, living in most habitats apart from thick forest. Measuring 19–21.5 cm in length, the willie wagtail is contrastingly coloured with almost entirely black upperparts and white underparts; the male and female have similar plumage.

This post is part of the Weekend Reflections meme,
and also part of the Saturday Critters meme.

Friday, 22 May 2020

DESKTOP 2486 - STORMY

Approaching storm in one of Melbourne's light industrial areas. We have had above average rainfall this Autumn and it has been quite cool, also.

This post is part of the Skywatch Friday meme.