1907] Rehder,—Some Forms of New England Trees 111 
between this form and the type of the species; such was at least the 
case in a number of seedling plants I saw in the park at Reinhardts- 
brunn in the Thuringian Mountains. Trees propagated by graft- 
ing are planted occasionally in European gardens. Picea rubra f. 
virgata may now likewise be found in some gardens, for Prof. S. F. 
Clarke stated in a letter to Prof. C. S. Sargent, that Mr. G. Walker 
made cuttings of this Spruce. A grafted plant of this form lived in 
the Arnold Arboretum for years but died unfortunately a few years 
ago. 
BETULA LENTA L. forma laciniata f. n.— Betula lenta “form” 
Sanford, RHopora 4:53. (1902.) 
A typo differt folis inciso-lobatis, lobis utrinque 6-9 argute ser- 
ratis, inferioribus circa 1 cm. longis apicem versus decipientibus et 
in serraturas angustas acuminis transeuntibus. 
Differs from the type by the incisely lobed leaves. Leaves 6-8 
cm. long, subcordate or truncate at the base, long acuminate on 
each side with 6-9 ovate-lanceolate, sharply serrate and acuminate 
lobes, the lower ones about 1 cm. long and gradually passing into 
the sharply serrate apex. 
New Hawrsuime: New Boston, Aug. 1901, S. N. F. Sanford 
(Herb. Gray) and July 31, 1902, E. W. Morse, (Herb. Arnold Arbore- 
tum). 
This is interesting as a parallel form to the Old World Betula 
pendula f. dalecarlica (L.) C. K. Schneider and Betula alba var. urticifolia 
Regel, both of which have been repeatedly found wild in Scandinavia. 
Of the form here described only a single tree of about 12 feet height 
has been found by Mr. Sanford near New Boston at an altitude of 
about 1200 feet as'stated by him in the article referred to above. 
Judging from his description as well as from the specimens the tree 
possesses ornamental qualities which would make its introduction 
into our gardens desirable. This could be easily accomplished by 
grafting and this would be done at the Arnold Arboretum, if branches 
were sent late in fall or during the winter to this institution. 
FAGUS GRANDIFOLIA Ehrh. forma pubescens Fernald & Rehder, f. n. 
A typo differt foliis subtus tota facie pilosis sed marginem versus 
saepe glabrescentibus, ad venas villosis. 
Differs from the type in having the under side of the leaves short- 
pubescent, but toward the margin often glabrescent and the veins 
covered with a villous pubescence, not with long silky hairs. 
