WildBirdontheFly asked for Twittered bird-related poems that included the word "corneous" I thought of the bark of this tree and the White-headed Woodpeckers I saw there.    From Wordnik.com.  [Liza Lee Miller] Reference

Peritreme: the corneous selerite surrounding a spiracle.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Caulis: the funicle of antenna: the corneous basal part of jaws.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Ossicula: small corneous pieces that serve in the articulation of the wings to the thorax.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Episternites: the upper pair of corneous appendages forming the ovipositor in grasshoppers.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Armature: applied to the spinous or chitinous processes on the legs, body or wings; or the corneous parts of genitalic structures.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

The endosperm is usually white and floury as in normal maize, but in some types the outer portion is hard and corneous, as in popcorn.    From Wordnik.com.  [7. Sorghum] Reference

The winter wheats are, as a rule, more soft and starchy than the spring wheats, which are usually corneous or flinty to different degrees.    From Wordnik.com.  [Human Foods and Their Nutritive Value] Reference

As with popcorn, the best popping types usually have small grains with a dense, "glassy" (corneous) endosperm that traps steam until the pressure builds to explosive levels.    From Wordnik.com.  [10. Sorghum: Specialty Types] Reference

Omia: the shoulders: the lateral anterior angles of an agglutinated thorax, when they are distinct: = see umbone: in Coleoptera; a corneous sclerite to which the muscles of the anterior coxa are attached; also the lateral margin of the prothorax; also the lateral margin of the scutellum in Carabids and Dytiscids.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Harpes: the lateral pieces of the male genitalia in Lepidoptera, used as clasping organs: also applied to the corneous hooks often borne by these lateral pieces, which are then termed valves; see clasper: in culicids an articulated process, sometimes jointed, at the base of inner side of side-piece, below and exterior to the harpagones.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

In some, however, the feet end in a single corneous substance called a hoof.    From Wordnik.com.  [The Book of Household Management] Reference

In the next stage the larva has a solid corneous envelope and an oval shape, and, in its color, consistency, and immobility, resembles the chrysalis of.    From Wordnik.com.  [A Book of Natural History Young Folks' Library Volume XIV.] Reference

There are still others that have their toes united and drawn under the skin, or enveloped in corneous hoofs, and are thereby enabled to exercise no prehensile power whatever.    From Wordnik.com.  [The Book of Household Management] Reference

On the general surface the fungus has its seat in the epidermis, especially in the corneous layer; upon the scalp and bearded region the epidermis, hair-shaft, root and follicle are invaded.    From Wordnik.com.  [Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine] Reference

The corneous external coat is very soft, distinctly fibrous, and at the base not much thicker than a human nail; the osseous core full of vascular grooves, and inside very cellular, the pair scarcely weighing four pounds.    From Wordnik.com.  [Delineations of the Ox Tribe The Natural History of Bulls, Bisons, and Buffaloes. Exhibiting all the Known Species and the More Remarkable Varieties of the Genus Bos.] Reference

A small portion of its hard and corneous kernel, triturated with water in a vessel of porphyry, and mixed, according to the nature of the disease and skill of the physician, with the powder of red or white coral, ebony, or stag's horns, was supposed to be able to put to flight all the maladies that are the common lot of suffering humanity.    From Wordnik.com.  [Chambers's Edinburgh Journal, No. 443 Volume 17, New Series, June 26, 1852] Reference

(epiderm), which protect the sensitive and vascular derm, so, likewise, in the foot the pododerm produces over its entire surface soft cells, which, pushed away by more recent cells forming beneath, lose moisture by evaporation and are rapidly transformed into the corneous material which we call the hoof.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

Lora: the chitinous bands connecting the submentum with the cardo of maxilla (Comst.): the submentum: small cords upon which the base of the proboscis is seated (Say): the anterior part of the genae at the edge of the mouth: the corneous processes to which the muscles flexing the mouth in certain Diptera are attached, and in that sense the palpifer of the maxilla: in Homoptera, the small sclerite at side of clypeus and front, extending laterally to the genae.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

"In their moments of anger, which are frequent, especially among the males, their internal feelings, by their efforts, more strongly urge the fluids toward this part of their head, and it there secretes the corneous matter in some, and osseous matter mixed with corneous matter in others, which gives origin to solid protuberances; hence the origin of horns and antlers, with which most of these animals have the head armed.    From Wordnik.com.  [Lamarck, the Founder of Evolution His Life and Work] Reference

It is hard and corneous.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

The head is of a corneous, opaque substance.    From Wordnik.com.  [Chambers's Edinburgh Journal, No. 451 Volume 18, New Series, August 21, 1852] Reference

10 inch display with a 1024 x 600 resolution, 1GB of RAM and either a 160 or 250GB corneous ride.    From Wordnik.com.  [British Blogs]

Clings to corneous bark of stump.    From Wordnik.com.  [Liza Lee Miller] Reference

"The texture of the body, in which all these varieties have their seat, is the extracorial or exodermal structure, constituting, if I may so speak, the outer coating of the body, external to the true skin, which corresponds to the cuticular and corneous excrescences of animals -- a structure which includes horns, hoofs, hair, feathers, and all similar appendages in different orders of animals.    From Wordnik.com.  [Blackwood's Edinburgh Magazine, Volume 56, Number 347, September, 1844] Reference