Book  (Apr 1999)  Page(s) 556.  
 
Lessing Lambertiana. Peter Lambert 1914

Book  (Apr 1993)  Page(s) 312.  
 
Lessing Hybrid Musk (Shrub), red blend, 1914, 'Trier' x 'Entente Cordiale'; Lambert, P. Description.

Book  (1990)  Page(s) 112.  
 
Lessing Hybrid Musk. 1914. Large clusters of small, double nicely fragrant flowers of deep rose-pink with white markings and a lemon centre.

Website/Catalog  (1938)  Page(s) 16.  
 
Repeating climbers. Lambertianas. Lessing (Multiflora) (P. Lambert 14). Very vigorous, climbing, armed, large firm light green foliage, in large clusters, quite double, small, reddish pink with whitish center stripe, lemon-yellow center, buds red-yellow, fragrant.

Book  (1936)  Page(s) 415.  
 
Lessing (multiflora, Lambertiana) Lambert 1914; Trier X Entente Cordiale; reddish pink with white center stripe, small, well double, in clusters of 10-40, floriferous, repeats, fragrance 5/10, red-yellow buds, many thorns, large light green foliage, growth 7/10, climbimg, 1,50m., Sangerhausen

Book  (1933)  Page(s) 193.  
 
LESSING. P. Lambert, 1914. Bushy Lambertiana with clusters of small, double, dark pink flowers, striped white.

Website/Catalog  (1929)  Page(s) 61.  
 
Lambertiana Roses
A class of Roses new to this country, originated by Peter Lambert of Germany. They tend to be shrubby climbers which bloom more or less frequently during the season. Valuable as strong shrubs and most interesting as a step forward in Rose progress. Following varieties are $1.50 each
Lessing. (P. Lambert, 1914.) Small, double, dark pink flowers with white stripes in the petals and pale yellow centers, fragrant and in clusters. Strong.
A clear, fresh color, unusual in climbers of this class. (Trier X Entente Cordiale.)

Website/Catalog  (1926)  Page(s) 37.  
 
Repeat-flowering semi-climbers. 1.5 to 2.5 m tall.
Multiflora Lessing (P. Lambert 1914). Vigorous and climbing, armed with prickles. Large light green foliage. Large clusters, quite double, small, reddish-pink with central white stripe, lemon-yellow centre. Bud reddish yellow, fragrant.

Website/Catalog  (1923)  Page(s) 16.  
 
Rosa Lambertiana... Lessing (Lambert, 1914). Violet-pink with white stripe, center lemon-yellow. (Trier X Entente Cordiale).

Website/Catalog  (1914)  Page(s) 9.  
 
Repeating Climbers (Lambertiana Race) I have dedicated the race of continuous blooming (repeatin) climbers bred by myself to the memory of German poets. The following are furthermore in propagation.....Lessing