202 JOURNAL OF THE ARNOLD ARBORETUM (vol. iv 



This form came to the Arnold Arboretum in 1892 from Kew Gardens. 

 It flowered at the Arboretum on May 29, 1898, and fruits were collected 

 by A. Rehder on September 27 of the same year as well as on November 5, 

 1902 (no. 1781-4, olim 2766). The specimen of September 27, 1898, has 

 rather dark brown young twigs which make it unlikely that it has the 

 same origin as B. macracantha. There should be made artificial crosses 

 of B. an statu with B. sibirica and with B. canadensis. We need some 

 experimental proofs, and it may be that certain characters of hybrids 

 are not to be found in cither parent as according to Rehder seems to be 

 the case in some Philadelphus-hybrids. 



X Berberis Parsonsii, hybr. nov. 



Frutex ut videtur laxe elongato-ramosus ; ramuli annotini flavo-rubri vel 

 fere rubro-purpurascentes, angulato-striati, laeves, biennes cinereo- 

 brunnei, vetustiores cinerascentes ; internodia 2-3.5 cm. longa; spinae 

 satis validae, pleraeque 3-fidae, patentes, flavo-brunneae vel flavae, subtus 

 applanatae vel subsulcatae, mediae ad 2.7 cm. longae, lateralibus longiores. 

 Folia ad 7-fasciculata, inaequalia, matura satis crasse chartacea, ramulorum 

 fcrtilium obovato-oblonga vel -elliptica, apice brevi-acuta vel obtusa, 

 mucronulata, basi cuneata, in petiolum subnullum attenuata, 2 : 0.9 

 ad 4 : 1.6 cm. magna, margine subintegerrima vel spinuloso-dentata 

 dentibus utrinque 2-6 patentibus 1-3 mm. longis, superne saturate vindia, 

 subtus valde discoloria, albescentia vel glaucescentia, pruinosa et sub 

 microscopio paullo papillosa, utraque pagina valde laxe elevato-reticulata, 

 ramulos novellos fulcientia vel surculorum aliis similia, saepe elliptica 

 acutiora. Inflorescentiae elongatae, valde laxiflorae, 5-7 cm. longae 

 pedunculo 2-3.5 cm. longo incluso, racemosae vel subumbellato-race- 

 mosae et saepe ex parte paniculatae, rubescentes, patentes (vel pendulae 

 vel ramis pendentibus?; pedicelli (l-)1.5-2 cm. longi, fructiferi apice 

 leviter incrassati bracteis lanceolatis acuminatis 2.5-3 mm. longis suffulti; 

 flores satis magni, aperti, ut videtur 12-13 mm. diametientes, aurei?, an 

 extus rubicundi?; sepala externa late ovato-triangularia, mediis similibus 

 vel late ovatis fere duplo minora, interna late elliptica vel obovata, 6-7 

 mm. longa; petala late obovata, circiter 7 mm. longa, apice emarginata, 

 basim versus contracta, glandulis 2 distinctis sed parvis ovoideis separatis 

 aurantiacis? praedita; stamina petalis }4 breviora, apice truncata; ovarium 

 elliptico-oblongum, stylo satis distincto, stigmate mediocri, ovulis 3-4 

 sessilibus. Fructus obovato-oblongi vel -elliptici, cerasini?, leviter, 

 pruinosi, ad 14 : 5-6 mm. magni, stylo distincto circiter 1 mm. longo 

 excluso; semina perfecte matura nondum visa. 



This is a remarkable plant which came to the Arboretum in 1884 from 

 the nursery of S. B. Parsons & Sons, Flushing, N. Y., as B. umbellata. It 

 flowered on June 21, 1888, and fruits were collected on October 11, 1888 

 and October 9, 1889 (no. 2173-2, olim 1556). Unfortunately the plant 

 died, and Parsons' nursery no longer exists. I am inclined to believe that 



