204 JOURNAL OF THE ARNOLD ARBORETUM [vol. vi 



Juniperus horizontalis f. plumosa, comb. nov. 



Juniperus communis depressa plumosa Andorra Nurseries, Price-list, Spring. 

 1919, p. 8; Autumn, 1919, p. 11 (1919), name. 



A typo recedit habitu depresso rarais ascendenti-patentibus vel fere 

 horizontaliter patentibus nee prostratis, foliis omnibus vel fere omnibus 

 acicularibus oppositis vel tantum in ramis primariis robustioribus ternatis 

 patenti-erectis vel leviter subaccumbentibus 2-6 mm. longis, per autum- 

 num et hieinen colore violaceo suffusis. 



Specimens and plants examined: plants growing in the Arnold Ar- 

 boretum received from the Andorra Nurseries near Philadelphia, Penna., 

 in 1922 (no. 11138; specimens: October 27, 1924); from Cornell Uni- 

 versity in 1922 (no. 13357; specimens: October 27, 1924) and from 



Jeffrey's Nursery, Long Island in 1921 (no. 11348; specimens: October 27, 

 1924). 



This form resembles in its foliage the preceding form though the 

 leaves are perhaps slightly longer and less spreading and assume a more 

 conspicuous violet color in autumn, but it differs in its low depressed habit 

 with ascending-spreading or nearly horizontally spreading branches shorter 

 and more loosely branched than in the type, forming a depressed bush with 



cm. tall and more in diameter. It is apparently 

 a form of J. horizontalis and differs in its leaves from forms of J. Sabina 

 and J. virginiana in the same characters as pointed out under the preceding 

 form. The plant from Jeffrey's Nursery shows a tendency to become 



prostrate and in this respect approaches the type. 



40-50 



Abies alba Mill. f. compacta, comb. nov. 



Picea pectinata compacta Parsons, Cat. 65 (1899). 



Abies pectinata compacta Beissner in Mitt. Deutsch. Dendr. Ges. vin. 108 

 (1899).— Hornibrook, Dwarf Conif. 23 (1923). 



This form originated in the nursery of S. B. Parsons & Son, Flushing, 

 New York, sometime before 1899. There is a large healthy specimen of 

 this form on the Hall estate near Warren, Rhode Island, about 8 feet tall 

 and 12 feet through. The form makes a dense roundish bush with ascend- 

 ing branches and crowded short branchlets; the leaves are very lustrous 

 and about 1.5 cm. long. 



Cedrus libanotica Link f. glauca, comb. nov. 



Cedrus Libani 2. foliis argenteis Loudon, Arb. Brit, iv. 2402 (1838). 



Pinus Cedrus 1. foliis argenteis (Loud.) Antoine, Conif. 57 (1840). 



Cedrus Libani glauca Knight & Perrv, Syn. Conif. 42 (1850), name only. 



Carrtere, Traits Conif. 284 (1S55). 

 Abies Cedrus (B) argentea Lindley & Gordon in Jour. Hort. Soc. Lond. v. 



214 (1850), name only. 

 Cedrus Libani argentea Loudon apud Cordon, Pinet. 44 (1858). 

 Pinus Cedrus £. glauca Parlatore in De Candolle, Prodr. xvi. pt, n. 40S (1868). 

 Cedrus Cedrus f. glauca Voss, Vilmorin Blumengart. ed. 3, i. 1231 (1896). 



This form differs from the type in the glaucous or bluish white color of 



its leaves. 



