scholarly journals Allosidastrum, un nuevo género de Malvaceae de los neotrópicos

2017 ◽  
pp. 23
Author(s):  
Antonio Krapovickas ◽  
Paul A. Fryxell ◽  
David M. Bates

Four species that have been variously included by previous authors in the genera Sida or Pseudabutilon are segregated as the distinct genus, Allosidastrum (Hochr.) stat. nov. A .,dolichophyllum from Venezuela is described as new. The most widespread species is A . pyramidatum (Cav.) comb. nov., which occurs over most of the range of the genus from Mexico and the West Indies to parts of Brazil and Bolivia. The other two species, A. hilarianum (Presl) comb. nov. and A. interruptum (DC.) comb. nov., are found in Mexico, Central America, and Colombia.

1917 ◽  
Vol 8 (2) ◽  
pp. 135-154 ◽  
Author(s):  
A. Ingram ◽  
J. W. S. Macfie

Howard, Dyar and Knab in their monograph “ The Mosquitoes of North and Central America and the West Indies,” in discussing the rearing of mosquitos, emphasise the importance of larvae in specific determination. They write (Vol. I, p. 181) “ Many species of Culex are of uncertain determination without the associated larvae, while some Aëdes have identical adults, yet dissimilar larvae. The characters of the larvae reside in the modifications of the chitinous appendages of the skin and the arrangement of the hairs. As these are fully retained by the cast skins, it is possible to preserve both the larva and the adult of the same identical specimen, thus assuring absolutely correct associations.”


Author(s):  
Anna Brinkman

Economic warfare, in the form of commerce predation, was a crucial part of Britain's strategy in the West Indies during the American War of Independence. The rebels relied on a flow of goods provided by Spanish, French, Dutch and British merchants which British warships and privateers tried to stem. Britain's peaceful relations with the other three powers in the region depended greatly on being perceived to justly conduct economic warfare without breaking maritime law or bilateral treaties. British strategy during the war, therefore, was a fine line between crippling the rebels through aggressive commerce predation without giving cause for grievance to the other regional powers. The war opened several commercial opportunities in the form of smuggling and privateering. Merchants intentionally blurred the boundaries between enemies and allies to suit a given commercial venture. These blurred boundaries in the Americas were problematic for British ministers and Admiralty officials entrusted with prosecuting the war. Maritime treaties and international law were constantly reinterpreted in an attempt to avoid ruptures with other colonial powers, achieve Britain's war aims, and lend credence to British policy.


1933 ◽  
Vol 24 (3) ◽  
pp. 345-348 ◽  
Author(s):  
Hubert W. Simmonds

The plant Clidemia hirta belongs to the natural order Melostomaceae. It is of shrubby growth, with a hard tough stem and produces quantities of dark purple berries, filled with minute seeds. These berries are much relished by certain birds, which feed upon them and distribute the seeds. The leaves are covered with fine hairs and the plant is not eaten by stock.The plant is a native of the West Indies, Central America and the Northern portion of South America. It is supposed to have been introduced into Fiji from British Guiana at some time prior to 1890. That this was the origin of the plant is supported by slight differences observed by the writer in the foliage of the Trinidad, Panama and British Guiana forms of the plant, the Fijian one closely resembling those of the last named country.In Fiji the plant was first observed along the fences of paddocks in the Waimanu Valley, whence it spread with great rapidity, quickly becoming a weed of major importance. By 1919, when the writer arrived in the country, thousands of acres were covered with it to the exclusion of almost all other growth. On good soil it formed a stand five or six feet high, through which the cattle were only able to keep open narrow paths. Not only did it rapidly occupy the open grass lands, particularly the rich dairying and fattening country, but it thrived almost equally well under the shade of coconut and rubber plantations, leading to loss of many fallen nuts and entailing greatly increased weeding costs.


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