208 JOURNAL OF THE ARNOLD ARBORETUM (vol. iv 



Berberis Mauritanica Boerhave, Ind. PL Hort. Lugd.-Bat. 260 (1710), fide 



Boerhave, Ind. alt. n. 233 (1720). 

 Berberis spinis triplicibus Berberis latissimo folio canadensis Linnaeus, Hort. 



Cliff. 122 (1737). 

 Berberis foliis obverso-ovatis Miller, Gard. Diet. ed. 7, no. 2 (1764). 

 Berberis vulgaris canadensis Aiton, Hort. Kew, I. 479 (1789). 

 Berberis pisifera Rafinesque, Silva Tellur. 68 (1838). 

 Berberis caroliniana Sweet, Hort. Brit. ed. 3, 19 (1839), nom. nud. 

 Berberis angulizans Massias in Gartenwelt, I. 100, t. col. (1896). 

 Berberis sinensis var. canadensis Regel in Act. Hort. Bot. Petrop. n. 416 



(1873), excl. synon. Schrad. 



Frutex erectus, satis laxe ramosus, ramis elongatis vix flexuosis, (0.5-) 

 1-2 m. altus; ramuli annotini flavo-brunnei vel obscure purpurascentes, 

 angulati vel versus basim subteretes, lenticellis nigris minutissime punc- 

 tulati, rarius omnino laeves, biennes vetustioresque nigro-purpurascentes, 

 angulati, punctati, dein cineniscentes; internodia 1.5-4 cm. longa; spinae 

 satis breves et debiles, pleraeque 3-fidae, atrobrunneae vel purpurascentes, 

 subtus sulcatae, mediae 5 ad vix ultra 12 mm. longae, patentes. Folia ad 

 7-fasciculata, inaequalia, matura papyracea sed satis firma, ramulorum 

 fertilium oblonga, obovato-oblonga vel anguste obovato-oblonga, apice 

 obtusa, rotundata vel breviter acuta, minute mucronulata, basi cuneata, 

 sensim in petiolum 3-6 mm. longum contracta, superne saturate viridia, 

 subenervia vel graciliter laxe reticulata, subtus pleraque intense pallidiora, 

 pruinosa, eodem modo vel paullo intensius reticulata (margines cellularum 

 epidermidis utriusque faciei subaequimagnarum superne vix vel paullo 

 subtus distinctius undulatae), minimis exceptis 2 : 0.6 ad 5 : 1.8(-2) 

 cm. magna, margine subintegerrima vel utrinque dentibus satis brevibus 

 1-9 remotis subsinuato-dentata ; folia ramulos novellos fulcientia surcul- 

 orumve majora, obovato-oblonga, late obovata, elliptica vel ovato- 

 elliptica, basi satis subito contracta, apice rotundata, interdum emar- 



magna 



longis exclusis, textura 



Inflorescentiae fere 



semper subumbellato-racemosae, pedunculo nudo 1-3 cm. longo suffultae, 

 5-8-florae, vel distinctius racemosae, ad 12(-15)-florae, 2-4.5 cm. longae, 

 saepe rubescentes; pedicelli graciles 5-10 mm. longi bracteis circiter 1.5 

 mm. longis triangularibus satis subito acuminatis suffulti; flores flavi, 

 8-9 mm. diametientes; sepala externa prophylliformia late triangularia, 

 mediis ellipticis vel triangulari-ellipticis fere duplo minora, interna late 

 obovata vel obovato-elliptica, 4-5 mm. longa, mediis duplo majora; 

 petala obovato-oblonga, versus apicem paullo angustata, imo apice breviter 

 vel vix incisa, basi satis unguiculata, glandulis 2 magnis ellipticis aurantiacis 



praedita; stamina petalis }/% breviora, apice obtusa; ovarium 



crasse ellipticum, stigmate lato, ovulis 2 (rarissime 3-4) sessilibus in- 

 structum. Fructus elliptic! vel obovato-elliptici, scarlatini (in sicco 

 saepe nigrescentes), nitentes, epruinosi, 7-9 mm. longi, 6-7 mm. crassi, 

 stigmate sessili; semina 1-2, circiter 5 mm. longa, ut videtur brunnea, 

 minutissime punctulata. 



