Floral Nectar Sugar Compositions of Some South and Southeast Asian Species

Biotropica ◽  
1991 ◽  
Vol 23 (4) ◽  
pp. 568 ◽  
Author(s):  
C. Edward Freeman ◽  
Richard D. Worthington ◽  
Margaret S. Jackson

REINWARDTIA ◽  
2016 ◽  
Vol 15 (2) ◽  
pp. 123
Author(s):  
J. F. VELDKAMP

VEDKAMP, J. F. 2016. A revision of Iseilema (Gramineae) in Malesia. Reinwardtia 15(2): 123 – 127. — There are three very rare and localized species in Malesia; one from Java is new. Notes on some other Southeast Asian species are given.



2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Graham H. Pyke ◽  
Zong-Xin Ren ◽  
Judith Trunschke ◽  
Klaus Lunau ◽  
Hong Wang

Abstract Plants invest floral resources, including nectar and pigment, with likely consequent reproductive costs. We hypothesized that plants, whose flowers abscise with age, reabsorb nectar and pigment before abscission. This was tested with flowers of Rhododendron decorum, which has large, conspicuous white flowers that increasingly abscise corollas as flowers age. As this species is pollinated by bees, we also hypothesized that nectar concentration would be relatively high (i.e., > 30% wt/vol) and petals would contain UV-absorbing pigment. Floral nectar volume and concentration were sampled on successive days until abscission (up to ten days old, peak at five days) and for sub-sample of four-day-old flowers. Flowers just abscised were similarly sampled. Flower colours were measured using a modified camera, with recordings of spectral reflectance for abscised and open non-abscised flowers. Pigment content was summed values of red, green, blue channels of false color photos. As expected, flowers reabsorbed almost all nectar before abscission, separately reabsorbing nectar-sugar and nectar-water, and petals contained UV-absorbing pigment. However, flowers did not reabsorb pigment and nectar-concentration was < 30% wt/vol. That flowers reabsorb nectar, not pigment, remains unexplained, though possibly pigment reabsorption is uneconomical. Understanding floral resource reabsorption therefore requires determination of biochemical mechanisms, plus costs/benefits for individual plants.



Phytotaxa ◽  
2017 ◽  
Vol 309 (1) ◽  
pp. 90 ◽  
Author(s):  
XIN-MAO ZHOU ◽  
CHENG-WEI CHEN ◽  
LI-BING ZHANG

A new combination, Pyrrosia annamensis (Christ) Li Bing Zhang, X.M.Zhou & C.W.Chen, for a Southeast Asian species formerly treated in Niphobolus is made. We also lectotypify Cyclophorus rhomboidalis Bonaparte.



Zootaxa ◽  
2006 ◽  
Vol 1277 (1) ◽  
pp. 65 ◽  
Author(s):  
J. M. WEBB ◽  
W. P. MCCAFFERTY

The male imago of the southeast Asian species Epeorus aculeatus Braasch is described for the first time, based on reared material from Thailand.





1986 ◽  
Vol 73 (11) ◽  
pp. 1613-1619 ◽  
Author(s):  
Thomas G. Lammers ◽  
C. Edward Freeman
Keyword(s):  




Crustaceana ◽  
2020 ◽  
Vol 93 (7) ◽  
pp. 793-801
Author(s):  
Adnan Shahdadi ◽  
Peter J. F. Davie ◽  
Dwi Listyo Rahayu ◽  
Christoph D. Schubart

Abstract Two Southeast Asian species of Parasesarma De Man, 1895, P. indiarum (Tweedie, 1940) and P. foresti (Rahayu & Davie, 2002), have been reported to be morphologically and genetically very similar. Present comparisons of a range of material show the two species to be identical in male chelar dactylar tuberculation, pleon, and first gonopod characters, all typically used to separate close sibling species in this genus. CO1 genetic distances between the two putative species are also too low to be regarded as interspecific. Parasesarma foresti is thus here regarded as a junior subjective synonym of P. indiarum.



ESAKIA ◽  
10.5109/16150 ◽  
2009 ◽  
Vol 49 ◽  
pp. 95-101
Author(s):  
Satoshi Kamitani ◽  
Rosichon Ubaidillah ◽  
Sih Kahono ◽  
Idris Abd Ghani


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