DOLICHOS 



THE BULB BOOK 



DOKONICUM 



shaped, net-veined leaves, downy on 

 tlie under-surface but smootli above 

 {Bot. Mag. t. 1490). 



D. Iieschenaiiltlanum. — A native 

 of the mountains of S. India and 

 Ceylon, grows 1 to 2 ft. high, and 

 produces white bell-shaped flowers in 

 spring. The leaves vary from elliptic 

 lance-shaped to roundish and pointed. 

 (Bot. Mag. t. 6935.) 



This species requires greenhouse 

 treatment. 



D. Menzlesl. — A native of California, 

 ] to 3 ft. high, with greenish flowers 

 and oval lance-shaped leaves rounded 

 at the base, pointed at the apex, and 

 and more or less woolly or pubescent. 



D. puUum {D. fvlvum ; Uvvlaria 

 chinensis). — A singular looking 

 Chinese and Indian plant about l^ 

 ft. high, with angular zigzag stems, 

 ovate lance-shaped pointed leaves, 

 and brownish flowers in September 

 and October (Bot. Mag. t. 916). 

 There is a smaller yellow-flowered 

 variety called parviflorum. 



DOLICHOS (dolihos, long ; referring 

 to the long shoots). Nat. Ord. 

 Leguminosse. — This genus contains 

 over twenty species of more or less 

 climbing plants, with three foliolate 

 leaves, and clusters of pea-like 

 flowers. 



D. simpllcifoliuB. — This species 

 from Tropical Africa differs from 

 most of its tribe in having a woody, 

 tuberous root-stock, from which arise 

 annually herbaceous, erect stems 

 about 1 ft. long, bearing simple lance- 

 shaped leaves about 6 ins. long, in 

 the axils of which clusters of pink 

 pea-shaped flowers are produced 

 (Bot. Mag. t. 7318). 



This species is of botanical interest. 

 It should be grown in sandy loam in 

 a warm greenhouse or stove. The 

 same may be said of another species, 

 pseudopachyrrhiziis, which has a large 



tuberous root-stock, climbing stems, 

 three-foliolate leaves, and violet-blue 

 flowers in racemes 6 to 18 ins. long. 



DORONICUM (from doronigi, the 

 Arabian name), Leopaed's Bane. 

 Nat. Ord. Compositae. — A genus con- 

 taining about a dozen species of hardy 

 plants, some of which have swollen, 

 tuber-like stems produced at the 

 ends of creeping roots. All the 

 species are more or less hairy, and the 

 flower-heads are borne on tall erect 

 stalks. 



200 



FiQ. 120. — Doronicum, root-stock. (^ ) 



p. pardallanches.— A British and 

 European plant Ij to 3 ft. high, with 

 heart-shaped, toothed leaves, the 

 upper ones gradually becoming stalk- 

 less and stem-clasping. The yellow 

 flower-heads appear in May and 

 June, often several on a branching 

 stem. 



D. plantagineum. — This is a native 

 of S. Europe, and has a tuberous and 

 creeping root-stock; grows 1| to 

 3 ft. high, the lower leaves bemg 

 ovate, stalked, and unevenly toothed, 

 the upper ones more or less lance- 

 shaped, entire, and stalkless. The 

 large solitary flower-heads are bright 

 golden-yellow, and appear in great 

 profusion in April and May. The 

 variety excelsum (or Harpur Crewe) 

 is a splendid border plant, often 



