DESCRIPTIVE CATALOGUE. 



201 



Huimbaquiro ceibo (Peru). See Bombax ceiba. 

 Huinari blanca (Mex.). See Sida rhombifolia. 

 Huirahuira (Peru). Culeitium canescens. 

 Huitoc (Peru). See Genipa. 

 Hujed (Arab.). See Adansonia digitata. 

 Humulus lupulus. Common Hop. 



Exogen. Urticaceee. Perennial twining herb. 



This species, known and. cultivated the world over, where there are brewers to use 

 its product, may also be enu- 

 merated among textile plants. <^/T^if\ 



Fiber. — The fiber is well 

 suited for paper making, 

 especially unbleached paper 

 and cardboard. In Sweden it 

 has long been applied to tex- 

 tile manufactures. It is ex- 

 tracted from the plant by 

 steeping for twenty-four hours 

 in cold water containing 5 

 per cent of sulphuric acid, or 

 for twenty minutes in boiling 

 water with 3 per cent of the 

 acid. Another plan is to boil 

 for three-quarters of an hour 

 in water containing soap or 

 soda, then to wash, and boil 

 in very dilute acetic acid. The 

 fiber is finally washed, dried, 

 and combed, and then resem- 

 bles flax. (Spon.) Its use for 

 fiber has never been recorded 

 in this country. 



Huruhuruhika. lew 

 Zealand flax. See Phor- 

 miuvn. 



Hymenaea courbaril. 



West Indian Locust. 



Fig. 65. — The Doum palm, Hyphcene thebaica. 



A species of leguminous 

 plant found in the West In- 

 dies and South America. It is the jatai of Brazil and the simiri of Guiana. Useful 

 timber tree. Furnishes the Gum Animi. " It is covered with a very thick but light 

 bark, which is used by the Indians for making their canoes." 



Hymenodictyon excelsum. 



A Ceylon species closely related to cinchona. Is mentioned by Liotard as a fiber- 

 producing plant that might be considered for paper stock. 



Hyphaene thebaica. The Doum Palm. 



A palm of Egypt, exceptional from its normally branching trunk. Savorgnan 

 states that fiber is derived from this palm that is adapted to various uses, especially 

 for brush and broom making. (See fig. 65.) 



