1923] SCHNEIDER, NOTES ON HYBRID BERBERIS 221 



Berberis Thunbergii f. Maximowiczii, nov. f. 



B. Maximowiczii Regel in Gartenfl. xxi. 238 (1872). 



B. Thunbergii var. Maximowiczii Regel in Act. Hort. Bot. Petrop. n. 420 

 (1873).— Franchet et Savatier, Enum. PL Jap. n. 272 (1879). 



A typo recedit foliis acutis vel rarius obtusis utrinque viridibus. — These 

 characters are rather inconstant, and it is almost impossible to distinguish 

 this form with certainty. In the Arnold Arboretum a plant (no. 4769) 

 raised in 1901 from seeds from the Tokyo Botanic Garden seems best to 

 represent this form. 



Berberis Thunbergii f. argenteo-marginata, nov. f. 



B. Thunbergii, "Silver Beauty/' in Gard. Chron. ser. 3, xlix. 10, fig. 10 (1911). 



A typo recedit foliis margine argenteo-marginatis. — It originated m the 

 Continental Nurseries of J. van Leeuven at Franklin, Mass. 



Occasionally seedless forms can be found which might be named f. 

 asperma with the same right as a f. enuclea is distinguished in B. vulgaris. 



Berberis Thunbergii var. minor Rehder in Mitt. Deutsch. Dendr. Ges. 

 xm. 330 (1898). 



B. Thunbergii var. Dawsonii, Bean, Trees & Shrubs Brit. Isles, I. 250 (1914). 

 A typo recedit habitu minore debiliore, foliis plerisque minoribus, 



floribus saepissime singulis et etiam fructibus saepe minoribus. — It is a 



Jorm of very dense habit scarcely distinguishable from the type in the 



herbarium. I refer to it no. 4381 from the Arnold Arboretum which is 



said to have been raised from seeds of typical B. Thunbergii. 



Berberis Thunbergii var. pluriflora Koehne ex Rehder in Mitt. Deutsch. 

 Dendr. Ges. xm. 33 (1898). 



A typo praecipue recedit habitu minus dense ramoso, foliis saepe ob- 

 longioribus et longioribus majoribus ramulorum sterilium interdum ex 

 parte graciliter serrulatis, inflorescentiis distincte racemosis ad 5.5 cm. 



longis 5-15-floris. 



This form is known only in cultivated state. It is often regarded as a 

 form of the hybrid B. ottawens's but plants like those cultivated at the 

 Arboretum under no. 671 (partim) and no. 4576 show no influence of 

 B. vulgaris at all. Extremely fine fruiting branches were collected by 

 Sadler in Hort. Kohanke, Painville, Ohio, in October, 1916. The fruits 

 are mostly coral-red as in the type, but there are a few dull red ones with 

 a slight bloom that somewhat suggests B. vulgaris. If this variety should 

 be of hybrid origin, top, it certainly represents a form of B. oUawensis that 

 comes very near B. Thunbergii. 



Schneider 



Freiland-Laubg. ed. 2, 116 (1922), nomen seminudum. 



Frutex patulo-rectus, habitu inter B. vulgarem et B. Thunbergii satis 

 intermedia, circiter 0.6 ad 1.5 m. altus; ramuli annotini plus minusve 

 hrunnesoentes vel flavo-brunnei. ut biennes flavo-cinerei sulcati. vetustio- 



