200 JOURNAL 



[vol. IV 



Berberis macracantha Schrader in Linnaea, xn. 356 (1838).— Schneider 

 in Mitt. Deutsch. Dendr. Ges. xv. 176 (1907). 



Frutex divaricato-ramosus, squarrosus, ad 3-4 m. altus, ramis satis 

 crassis elongatis; ramuli annotini flavo-cinerei vel interdum leviter brun- 

 nescentes vel hornotini ex parte violascentes, teretiusculi vel angulato- 

 sulcati, laeves, biennes vetustioresque cinerascentes; internodia 1.5-3 cm. 

 longa; spinae 1-3-fidae, ramorum vetustiorum debiles minores, ceterum 

 satis validae, applanatae, subtus sulcatae, flavo-brunnescentes, mediae ad 

 3 cm. longae, lateralibus longiores. Folia ad 8-fasciculata, inaequalia, 

 matura chartacea vel satis crassa, ramulorum fertilium ovalia vel obovato- 

 elliptica, apice obtusa vel rotundata, rarius acuta, mucronulata, basi 

 satis subito vel sensim in petiolum subnullum vel fere ad 1 cm. longum 

 contracta, superne intense viridia, subtus laete viridia vel cinerascentia et 

 pruinosa, utroque latere pleraque laxe modo B. aristatae elevato-reticulata, 

 rarius nervatione ad B. vulgar em magis accedentia, margine remote spinu- 

 loso-serrulata, dentibus 0.5-1 mm. longis patentibus utrinque 5-15 (mar- 

 gines cellularum epidermidis faciei superioris semper rectae visae, infer- 

 ioris interdum ab illis non diversae sed saepe satis distincte undulata), 

 minimis exceptis 2.5 : 1 ad 4.5 : 2 cm. petiolis inclusis magna; folia ramulos 

 novellos fulcientia satis anguste obovato-oblonga, ad 6.5 : 2 cm. magna 

 petiolis ad 1.5 cm. longis inclusis, surculorum iis similia vel apicem versus 

 minora, elliptico-rhomboidea, acuta, integerrima. Inflorescentiae elon- 

 gato-racemosae, satis laxiflorae, inferne nudae vel pedicellis basim in- 

 cipientibus, nutantes vel pendentes, (8-)10-25-florae, fructiferae ad 7-10 

 cm. longae; pedicelli interdum ex parte subverticillati, 5-10 mm. longi, 

 infimi saepe longiores, fructiferae graciles vel subcrassae, apice incras- 

 satae, bracteis lanceolatis acuminatis 1.5-2.5 mm. longis suffulti; flores 

 lutei, extus saepe rubescentes, aperti 7-10 mm. diametientes; sepala ex- 

 terna prophylliformia triangularia acuta parva, media illis duplo majora, 

 late ovata vel ovato-elliptica, interna similia vel obovata 6 mm. longa; 

 petala obovato-elliptica, apice integra vel leviter emarginata, basi paullo 

 attenuata, glandulis 2 distinctis separatis aurantiacis oblongo-ellipticis 

 praedita; stamina petalis Yz~ x A breviora, apice levissime apiculata vel 

 subtruncata; ovarium ovato-ellipticum, stylo brevi, stigmate mediocri, 

 ovulis 2-4 (-5) instructum. Fructus elliptici vel ovato-elliptici, purpureo- 

 violacei (cerasini) vel sanguinei, subpruinosi, 8-10 : 5-6 mm. magni, stylo 

 satis brevi coronati vel estylares; semina 1-2, purpureo-brunnea, levissime 

 punctulata, 5-5.5 mm. longa. 



With regard to the origin of this plant Schrader says: "Berberis macra- 

 cantha (pennsylvanica) B. ex America 1830." This seems to be the 

 reason for regarding this form as a presumable cross between B. canadensis 

 (caroliniana) and B. aristata. I cannot accept this view of its origin. 

 It looks to me more like a hybrid of B. vulgaris with B. aristata. I have 

 found it also under the name B. Fischeri. This name is first mentioned 

 by Koch in Wochenschr. Ver. Bef. Gartenb. Preuss. Staat. iv. (1861), 



