1923) REIIDER, COLLECTION OF THE ARNOLD ARBORETUM 109 



radially spreading, 1.5-2.3 cm. long and slightly over 2 mm iroad, those 

 of the leading shoots more gradually pointed, those of thd jaker branch- 

 lets abruptly pointed, dark green with a prominent midrib above, grayish 

 green beneath. Aril of fruit with narrow opening; seed ovoid, pointed 

 about 6 mm. long, with usually 2 stronger and 1 or 2 weaker ridges at the 

 apex and with an irregularly shaped obtusely 3 or sometimes 4-angled 

 hilum at base. 



Specimens examined: Arnold Arboretum under No. 8036, September 28, 1922 

 (plants received from the Hicks Nursery, Westbury, Long Island, in 1921 as T. 

 cuspidata Hicksii). 



This form which differs from the preceeding in its columnar outline 

 was raised by Mr. H. Hicks from seed of T. cuspidata f. nana Rehd. 

 collected in Mr. C. A. Dana's garden at Dosoris, Long Island, about 20 

 years ago. The original plant in the Hicks Nursery at Westbury, Long 

 Island, is now about 1.75 m. tall. Young plants raised from cuttings of 

 the original plant have been growing in the Arnold Arboretum since 1921 

 and have proved perfectly hardy. 



Abies Nordmanniana f. tortifolia, forma nova. 



A typo recedit foliis falcatis ramulum versus incurvis cincinnatis. 



Specimens examined: Hort. Mrs. William Bayard Cuttery, Oakdale, Long Island, 

 New York, W. C. Knight, No. 4, November 5, 1920 and October 14, 1922 (branches 

 with cones). 



Instead of having the leaves fairly uniformly pointed forward as in 

 the type the leaves are strongly falcate and curved inward making the 

 arrangement of the leaves appear curly and very irregular. The tree is 

 vigorous and healthy with leaves 2.5-3 cm. long. 



Picea Abies f. argentea, comb. nov. 



Abies excelsa argentca Berg in Schrift. Naturf. Ges. Univ. Dorpat, n. 39 (Ein. 



Spielart. Fichte) (1887). 

 Picea excelsa argentca Hort. apud Beissner, Handb. Nadelholzk. 367 (1891). 



Schroeter in Ber. Schweiz. Bot. Ges. X. 133 (1900), as lusus. 



Of the origin of this form which has the leaves variegated with white 

 I have been unable to find any record. 



Picea Abies f. mucronata, comb. nov. 



Abies communis mucronata Loudon in Gardeners' Mag. n. ser. VII. 386 (1841). 

 Abies excelsa 12. mucronata Hort, apud Loudon, Encycl. Trees & Shrubs, 1027 



(1842).— Gordon, Pinetum, 5 (1858). 

 Abies mucronata Rauch ex Gordon, 1. c. (1858) as synon., not Rafinesque. 

 Pinus Picea var. mucronata Endl. apud Lawson, List PI. Fir Tribe, 18 (1851). 

 Picea excelsa mucronata Carriere, Traite Conif. 247 (1855).— Seneclauze, Conif. 



28 (1867).— Beissner, Handb. Nadelholzk. 366 (1891).— Hornibrook, Dwarf 



Conif. 114 (1923). 



This form was raised by Briot at the Trianon gardens near Versailles, 

 France, where it was seen by Loudon in 1840 and described one year 

 later. It is a strong growing shrub forming a wide pyramid with ascending 



m 



or sometimes spreading branches, with stout reddish yellow branchlets 



