1923] SCHNEIDER, NOTES ON HYBRID BERBERIS 211 



grosse serrata vel subintegerrima, 2.5 : 1.5 ad 5 : 2.5 cm. magna petiolo 

 brevi incluso, subtus valde glaucescentia, utrinque laxe elevato-reticulata. 

 Inflorescentiae racemosae vel racemoso-umbellatae, pedunculo 1-2 cm. 

 longo nudo saepissime instructae (rarius summae subfasciculato-race- 

 mosae), circiter 3-5 cm. vel infimae ad 7 cm. longae; pedicelli partim 

 verticillati, satis graciles, inferiores ad 11, -superiores circiter 7-5 mm, 

 longi, bracteis lanceolatis acuminatis 1.5-2 mm. longis suffulti; flores 

 mediocres vel satis parvi, circiter 6-7 mm. diam., lutei, extus rubescentes; 

 sepala externa minima prophylliformia, media late ovata, internis late 

 obovatis minora, interna obovato-oblonga, circiter 4.5 mm. longa petala 

 obovato-elliptica, circiter 5 mm. longa, apice subtruncato leviter emarginata, 

 basi vix vel satis distincte breviter unguiculata, glandulis 2 oblongis satis 

 magnis aurantiacis separatis praedita; stamina petalis }/$ breviora, apice 

 subobtusa; ovarium ellipticum, stigmate satis lato, ovulis 2 subsessilibus. 

 Fructus obovato- vel oblongo-elliptici, ad 9 : 4.5 vel 10 : 5 mm. magni, 

 sanguinei?, vix vel paullo pruinosi; semina 1-2, rubro-brunnea, circiter 

 5-5.5 mm. longa, levissime punctulata. 



Schrader cites a "Berb. sinensis monsp. viridis 1832" a quotation I 

 have been unable to elucidate. According to the type I had before me in 

 1906 I believe that this form represents a cross between B. canadensis 

 and B. vulgaris. Therefore I accept Schrader's name for this hybrid to 

 which I refer specimens received from the Botanic Garden at Copenhagen, 

 collected on June 10 and October, 1916 (no. 4814/16, as B. brachybotrys) 

 from which the above description is partly drawn. Another specimen 

 from the same garden, collected May, 1915 and October, 1916 (no. 4, 

 G.O./189; as B. glauca ex Hort. Grenoble), seems to be a form of the same 

 origin rather more closely approaching B. vulgaris. At the Arnold Ar- 

 boretum there was a plant under no. 4577 (ex Hort. Spath before 1902, 

 as B. brachybotrys) of which I saw specimens collected on May 31 and 

 September 8, 1906. It has relatively long racemes (5-7 cm.), marked also 

 by the somewhat verticillate arrangement of the flowers which seems to be 

 a peculiar feature of hybrids of B. canadensis. The bracts of no. 4577 

 are shorter and obtuser more like those of B. canadensis. The habit 

 however points to B. vulgaris of which it almost has the flowers. The 

 fruits are ellipsoidal or obovate-ellipsoid, measuring up to 9:5 mm. 

 The vigorous shoots are dirty gray, and the brownish yellow spines are 

 up to 1.5 cm. long and distinctly furrowed beneath. 



From Copenhagen I have received under no. 4814 (Arnold, 1903) 

 specimens collected in June and October, 1916, which represent a form, 

 sent to Copenhagen from the Arboretum in 1903 as B. canadensis. It 

 agrees rather well with B. declinata but it may be a cross of canadensis 

 with B. amurensis. It seems, however, impossible to describe this form 

 as a distinct hybrid. A plant from the Kew Arboretum collected on May 

 11, 1880 and July 9, 1882 named B. vulgaris hypoleuca (no. 664) probably 



