216 THE CULTIVATED EVERGREENS 



4. C. obtusa, Sieb. & Zucc. {Cupressus obtusa, Koch. Retinispora obtusa, 

 Sieb. & Zucc.)- Hinoki C. Tree to 120 feet tall, with horizontal branches; 

 trunk with reddish-brown, rather smooth bark, peeling off in thin strips; 

 branchlets frond-like, arranged in horizontal planes, flattened, pendulous: 

 leaves bright green and shining above, with whitish lines beneath, thickish, 

 the facial ones rhombic-ovate, obtuse, and very closely appressed, with a 

 gland on the back, the lateral ones free at the acutish apex: cones globose, 

 nearly }/^ inch diameter, brown; scales 8, rarely 10, with a small mucro on the 

 depressed back, each with 2, rarely 3-5 narrowly winged seeds. Japan. — 

 Introduced in 1861 to Great Britain by J. G. Veitch and in 1862 to America 

 by Dr. G. R. Hall. Hardy as far north as Ontario and New England. A 

 handsome tree with dark green lustrous foliage. 



Color forms : Var. albo-spicata, Beiss. Silvertip Hinoki C. Young shoots 

 at first creamy-white, changing later to pale green. Var. avirea, Beiss. Golden 

 Hinoki C. Young foliage golden-yellow. Var. "aurea Yotmgii," Nash, is 

 similar, but the branchlets are more pendulous and the color less bright. 

 Var. Crippsii, Rehd. With pale yellow foliage. Var. "gracilis aurea," Beiss. 

 Graceful form, foliage bright yellow when young, changing later to greenish- 

 yellow. Var. tetragona, Rehd. (var. tetragona aurea, Nichols). A dwarf, 

 broad-pyramidal form, with crowded, irregular branchlet-systems, the 

 branchlets more or less 4-angled and partly golden-yellow, the shaded parts 

 green. 



Forms differing in habit: Var. magnifica, Beiss. A vigorous form with 

 stout branchlets and lustrous, bright green foliage. Var. gracilis, Nash 

 {Cupressus obtusa gracilis. Lav.). Slender Hinoki C. Compact pyramidal 

 form with dark green foliage; branchlets with slightly pendulous tips. Var. 

 erecta, Beiss. {Retinospora obtusa erecta, Waterer). Fastigiate form with 

 ascending branches and bright green foliage. Var. lycopodioides, Carr. 

 Clubmoss Retinispora. Low form, of somewhat irregular habit, with 

 spreading, rigid branches and thick, nearly terete, dark green branchlets; 

 leaves very crowded and disposed in more than 4 ranks. Var. filicoides, 

 Beiss. Fernspray Retinispora. Of slow growth, with short and densely 

 frond-like arranged branchlets. Var. compacta, Hartw. & Ruempl. {Retinos- 

 pora obtusa gracilis compacta, Hort.). Football C. Of dwarf and dense, 

 broadly conical habit with much crowded short branchlets at the end of the 

 short branches. Var. nana, Carr. Dwarf Hinoki C. Plate XVIII. Low form, 

 of slow growth, with short deep green branchlets. Var. "nana aurea," Carr., 

 is a form with the young growth golden-yellow. Var. pygmaea, Carr. (C. obtusa 

 breviramea, Hort., not Beiss.). Pygmy Hinoki C. Very dwarf form, with 

 horizontal, almost creeping branches, densely frond-like branched. Exceed- 

 ingly interesting form for rockeries. 



Juvenile form: Var. ericoides, Boehmer {Retinospora Sanderi, Sander. 



