JOURNAL 



OF THE 



ARNOLD ARBORETUM 



Volume IV OCTOBER, 1923 Number 4 



SOME OTHER GARDEN 



FORMS 



Camillo Schneider 



During my stay at the Arnold Arboretum from 1915 to 1919 I had the 

 opportunity to study some forms of Berberis most of which have been in 

 cultivation for a long time, and are, apparently, of hybrid origin. I have 

 taken a keen interest in these forms since I published in 1906 my remarks 

 on the Berberis of Schrader's Herbarium preserved at St. Petersburg 

 (see Mitt. Deutsch. Dendrol. Ges. xiv. 111-124). In 1838, Schrader 

 described in vol. xn of Linnaea a number of Berberis species mostly from 

 plants cultivated in European gardens. Some of his forms are very 

 doubtful, and I have not been able to elucidate them. Besides the forms 

 already mentioned by Schrader I have found many more in the great 

 collections in Europe and America; and I wish today to draw attention 

 at least to some of these. Unfortunately I have not been able to finish 

 my studies on all the cultivated forms of Berberis, but some of these 

 which I am going to describe are of no small value as garden plants. 



X Berberis emarginata Willdenow, Enum. PI. Hort. Bot. Berol. 395 

 (1809); Berl. Baumz. ed. 2, 53 (1811).— Guimpel, Otto und Hayne, Abb. 

 Fremd. Holzart. 78, t. 68 (1819-1825).— Schneider in Mitt. Deutsch. 



Dendr. Ges. xv. 178 (1907). 



B. emarginata var. latifolia Tausch in Flora xxi. 799 (1838). 

 B. dentata Tausch, 1. c. (1838), incl. var. latifolia et var. capitata. 

 B. vulgaris var. emarginata Gordon in Gard. Mag. n. s. vi. 2 (1840). 

 B. vulgaris var. microphylla Regel in Act. Hort. Petrop. n. 414 (1873). 



Frutex erectus, dense ramosus, habitu B. sibiricae, 0.4-0.8 (-1.2) m. 

 altus; ramuli annotini flavescentes, sed plerique rubescentes vel pur- 

 purascentes, laeves, ut biennes flavo-cinerei angulato-sulcati, vetustiores 

 cinerascentes; internodia 1-2 cm. longa; spinae satis debiles, pleraeque 

 3-fidae, interdum simplices vel 5-7-fidae, flavescentes, mediae ad 12 mm. 

 longae, subtus sulcatae. Folia 4-7-fasciculata, inaequalia, matura mem- 

 branacea, ramulorum fertilium obovato-oblonga vel obovato-lanceolata, 

 apice acuta vel obtusa, mucronulata, basim versus in petiolum subnullum 

 vel brevem sensim attenuata, margine dentibus gracilibus 0.5-1 mm. 



