A TRI-ORCHID.

A Case of Tri-Orchid

Orchid mantis

James O'Hanlon introduces the orchid mantis, a species of preying mantis that resembles flowers.

Orchid bees

protozoa, such as those that cause sleeping sickness, leishmaniasis, and even malaria, predominantly reproduce clonally, which is, of course, of considerable medical significance. In May 1991, Tibayrenc returned to my lab, now at UC Irvine, for 14 months of additional research. We have continued collaborating to the present. Are science and religion compatible? Evolution and religious beliefs n...

Regularity of Bounded Tri-Linear Maps and the Fourth Adjoint of a Tri-Derivation

In this Article, we give a simple criterion for the regularity of a tri-linear mapping. We provide if f : X × Y × Z −→ W is a bounded tri-linear mapping and h : W −→ S is a bounded linear mapping, then f is regular if and only if hof is regular. We also shall give some necessary and sufficient conditions such that the fourth adjoint D^∗∗∗∗ of a tri-derivation D is again tri-derivation.

Organ homologies in orchid flowers re-interpreted using the Musk Orchid as a model

Background and Aims. The presence of novel structures in orchid flowers, including auricles, rostellum and bursicles on the gynostemium and a lobed labellum, has prompted long-standing homology disputes, fuelled by conflicting evidence from a wide range of sources. Re-assessment of this debate using an improved model is timely, following recent phylogenetic insights and on the cusp of a revolut...