The names sound more like good old mystery titles; the ones with "guys and dames", if you know what I am talking about :-)
The article below is from Vick's Monthly Magazine, 1882. It gives a nice overview of the Sweet Pea in more practical terms than the previous post.
The illustration is from the magazine. It is used in the article to illustrate the different varieties. A very large image is at the end of the post. I have added the detail cropped images next to their descriptions.
SWEET PEAS.
The Sweet Pea presents a charming individuality that wins and holds our admiration. Every curve in its peculiar form is graceful and its colors are bright, or soft, and contrasting. Besides, it is one of those flowers that "from the voluptuous June catch their perfumings."
The petals of the Sweet Pea, which are five in number, and from their peculiar arrangement have received different names, are grouped into two pairs with the odd one standing somewhat erect back of them. The lower pair is called the keel, while the petals enclosing them are the wings, and the uppermost petal is called the banner.
In the colored plate the center flower is known as Scarlet.
In this it may be noticed that the petals forming the keel are white, the wings rose-colored, and the banner scarlet.
At the right of this center flower is one with white keel and very dark crimson wings and banner, this variety in the trade is called Black. >>
<<Directly underneath the last mentioned one is what is known as Blue Edged.
Above the center flower, Scarlet, is one with white keel and white wings and a rose colored banner, this is Painted Lady.>>
<<At the upper left-hand corner of the group is Scarlet Invincible, having a white keel and scarlet wings and banner.
Sow the seed as early as possible in the spring, about four inches deep, in good, rich, mellow soil. One way of sowing them, and a very good one, is to mark out a circle two feet in diameter, four inches deep, and sow the Peas around, about an inch apart. A stake about five feet high should stand at the center; just inside the circumference place a barrel hoop and peg it down to the ground, and attach strings to it about three inches apart all around, fastening them also at the top of the stake. On these strings the stems will climb by means of their tendrils, arranging themselves in a form, that of a cone, most advantageous to display their beautiful blooms.
One of our engravings shows a portion of a hedge supported by sticks. We have made the hedge thin, so as to show how the sticks are placed, but naturally they are almost, or entirely, concealed.
The other is a clump or group supported by a stake or two in the center.
Another course often pursued is to sow the seed in straight lines, supporting the stems either with strings or brush, thus forming a sort of hedge.
Mulching the ground with some light litter when the season becomes advanced has the effect to keep the soil cool, which is a most favorable condition for this plant. Cutting the flowers, and thus preventing the seed to form, has a tendency to keep the plants long in a blooming state.
Sweet Peas as cut flowers, odorous and variously colored and tinted, are of the highest value for bouquets, vases, and many other purposes.