4o4 DAJIE S ROCKET 



DAME'S EOCKET and DAME'S VIOLET, n^speris 

 matronalis. 



DAMMAEA. SeeAgathis. 



DAMNACANTHUS (Qvee^, powerful spines). Uubi- 

 (iceir. Tliis monotypie genus contains a tender, ever- 

 green, Japanese shrub, chiefly valued for its coral-red 

 berries, which remain on the bush until the fls. of the 

 next season are produced. Branches numerous, spiny: 

 Ivs. small, opposite, leathery, nearly sessile, broadly 

 ovate. a.uiiMuat.- : lis. small, axillary, in I's or 2'.s, 

 white. iriiLriiii ; .:il\x tube obovoid, limb l-S-eut; co- 

 rolla fu I ~li;i|H(i. Crop, by cuttings. This plant may 



be olit;iiiM(l I K.iu .1, mIi.ts in Japanese plants. 



IndicuB, Uartn. [1). mdjor, Sieb. & Zucc). Described 

 above. Himalayas and Jap.— Var. BubmltiB is not so 

 spiny. 



DAMPING-OFF. A 



trous rotting of i>l:iiit-, • 

 tings, and gent-nillx ;ii i 

 usually associati.l \mi!i 

 and air, with high an^l 

 times poor light. Such 

 and allow them to fall 



■ for a disas- 

 ings and cut- 

 re in the soil 



en the plants 

 prey to the minute parasitic 



fungi which live upon the decaying vegetable matter 

 the soil, and can remain alive for months, even if the 

 soil is thoroughly dry or frozen. As soon as the disease 

 is noticed, the healthy plants should be removed to 

 fresh soil, as the disease spreads rapidly. A whole 

 bench of cuttings may be ruined in a night. The skill- 

 ful propagator takes every possible precaution. His 

 benches have perfect dr.ainage, he uses fresh sharp 

 sand, and sometimes sterilizes it with steam heat for 

 several hours. Damping-ofl is one of the most trying 

 experiences of the beginner, and nothing can prevent it 



DANDELION 



ing-off and Burning are also used for ruined flowers. 

 Burning is often caused by sunlight or by imperfections 

 in glass, but a flower spoiled by dripping cold water, or 

 by some unknown cause, is said to have a burned look. 



One of the commonest occasions of Damping-ofl is the 

 sudden flooding of a bed or bench after leaving it too 

 dry for a long time. 



DAMSON. See Plum. 



DAN.S;A (a personal name). Marattidcew. A small 

 genus of fern-like plants, with svnMiiiria sessile, ar- 

 range 1 m rows 1 t r I irface 

 of the leaf Tht \nicr. 



DANDELION 



tootl r t 

 lar f I 

 nial or 1 

 Europe 1 \ 

 countries Oi i 



part at 

 stalk a 

 Dai del 



I n tl e 1 ) Tl e -nacu- 



Weber a steml peren- 



I Cott p6f> to- It 1 I tive to 



naturalized m all temperate 



k^ Mts and m the hifch north 



of corolla 

 ■onstricted 



on a long 

 loon of the 



cattering 



pecies of 



t common. 



ijtl ospir. 



but a thorough grasp of the principles of Greenhouse 

 Management in general, and Watering in particular. 

 (Consult articles on these subjects.) The terms Damp- 



1 d Dandelion (T _ 

 eds not reflexed m^ olucral scales, 



ranch prized for greens for this 



ted in parts of Europe also about 



tew other localities in this country. 



lull ed la ii,e 1 el ^arieties, 



s t tl n 1 forms 



^ I'riiig, 



1 1 1 1 u h tl V at stand, 



although the i lantlets ma> be transplaute 1 The plants 

 sho lid stand al out 1 foot apart each w ay and a good 

 crop will cover the land completelj when a \ear old. 

 Sandy or light loamy soil is preferred. The crop is har- 

 vested and marketed like spinach. The Ivs. or heads 

 are often blanched by tying them up, covering with 

 sand or a flower-pot. The plants are sometimes grown 

 more closely in beds, and frames are put over them to 

 force them. Roots are sometimes removed from the 

 field to the hotbed or house for forcing. When treated 

 like chicory (which see), the roots will produce a win- 



