Book  (1898)  Page(s) 64.  
 
Variétés Horticoles
1er Groupe.—PATENS
Section II. — Lanuginosa.
Regina (Anderson Henry). Fleur très grande, bleu lavande.

Magazine  (1877)  Page(s) 260, 270.  
 
p. 260: Reginæ. — Fl. Mag., III, 1864, pl. 175.

p. 270: Clematis Reginæ (Veitch), s. des lanuginosa; mauve.

Website/Catalog  (1875)  Page(s) 79.  
 
CLEMATIS. Virgin's Bower.  Waldrebe, Ger. Clematite, Fr.
The Clematis are elegant, slender branched shrubs, of rapid growth, handsome foliage and beautiful large flowers of all colors.  The newer varieties introduced within the last five or six years are great acquisitions.  Either in the open ground as pillar plants, bedding plants, single plants in masses or about rock-work, or cultivated in pots or tubs, the Clematis cannot be excelled.
We append the following from the English "Gardener." Jackman's Clematises: "They are magnificent; and more than this, they do give us some of the grandest things in the way of creepers the horticultural world has ever seen, making glorious ornaments either for walls, verandahs, or rustic poles or pillars, varying in color from deep rich violet hue to dark velvety maroon, and in the newer seedling forms, beautiful shades of pale bright blue."
They will stand the severest Winters if the roots are slightly covered.
Class I. Perpetuals, Flowering in the Summer and Autumn, on Summer Shoots.
C. Reginae.  Light mauve.  Very fine.  $1.50.

Book  (1872)  Page(s) 137-8.  
 
Descriptive Notes of Species & Varieties.
C. reginæ (Anderson-Henry). — This fine hybrid, raised from C. patens (azurea grandiflora), fertilized with C. lanuginosa, was obtained by Isaac Anderson-Henry, Esq., by whom cut flowers, which received a Second-class Certificate, were shown at South Kensington in 1862.  The habit is vigorous, and the leaves ternate, with ovate acuminate leaflets, glossy beneath, and remarkable for their healthy clear green colour.  The flowers are large, and consist of from six to eight broadly oval sepals of a deep mauve or lavender-blue, contrasting well with the pale cinnamon-coloured anthers.  The plant blossoms in May and June, and successionally produces occasional flowers during August and September.  There is considerable resemblance between the flowers of this variety, and those of C. Gem, but in the present kind the anthers are of a paler brown colour.  The figure of this variety published in the Floral Magazine (t. 175) gives little idea of its beauty.

Book  (1872)  Page(s) 9.  
 

Previously to this, however, hybridization had been commenced in a systematic way in the United Kingdom by Isaac Anderson-Henry, Esq., of Edinburgh, who was, we believe, first in the field, and who, in 1855, crossed C. patens (azurea grandifiora) with C. lanuginosa, the result being the production of C. reginæ, a handsome lavender-coloured variety of intermediate character, which, when shown in London in 1862, obtained a certificate of merit.

Magazine  (1864)  Page(s) pl. 175.  Includes photo(s).
 
CLEMATIS REGINÆ.
...Mr. Isaac Anderson Henry, of Hay Lodge, near Edinburgh, is the gentleman to whom we are indebted for this novelty. It
was raised (we are informed by Mr. Veitch, into whose hands it has passed) in 1856, being a cross between Clematis azurea grandiflora , as the female plant, and Clematis lanuginosa , as the male; it was submitted to the Floral Committee of the Royal Horticultural Society on April 22nd, 1862, when it received a certificate, and is thus noticed in their Transactions:—“A very fine hybrid: it had cordate leaflets, slightly furnished, as were the stalks both of the leaves and flowers, with short woolly hairs; the flowers were large, of a deep mauve or light violet colour, about four inches and a half across, and consisting of eight* broadly oval sepals, which measured about an inch and a half across, and were somewhat woolly behind. Mr. Henry stated that one flower on the plant had a tendency to duplication, three sepals of an inner row being developed. It was awarded a second-class certificate; but it was thought that had the plant been produced, so as to show its habit, it could have gained the highest award.”
With regard to its growth, Mr. Veitch says it seems to us much preferable to lanuginosa in habit, being better as regards foliage, growth, etc. Here, then, is another addition to our cool greenhouse climbers, and in certain conditions to our hardy ones also. Planted against a south wall, it will no doubt prove hardy.
Its cultivation is very simple; it will grow in any garden-soil ; but as in most cases a little more attention to the compost is amply rewarded by the greater vigour of the plant and the abundance of the bloom,—a mixture of loam and peat, with the addition of some well-rotted manure, being suitable for it. It is also easily propagated, by taking good firm side-shoots in summer, and striking them under a hand light, potting off into small thumb-pots in a light soil, and giving them gradually light and air. It should be added, that the individual flowers remain a long time in bloom.

* This is a misprint, we fancy; for the number, so says Mr. Veitch, is unquestionably six.