SCIENTIFIC AND POPULAR. 193 



a. H. antidyseiiteriea Wall. (Wrightia antidysenterica K. Br.). 

 India. Bark, Conessi bark, Tellicherry bark; bitter, tonic, 

 febrifuge, antidysenterie. 



1012. HOLLISTERIA, S. Wats, Hollisteria. Polygonaceae. 



White-woolly herbs with stems dichotoraously branched. 

 One species, California. 



1013. HOLOCARPHA, Greene. Holocarpha. Compositae. 



From Greek, "entire chafl". Syn. Hemizonia, in part. 

 Herb. One species, western U. S. 



1014. HOLODISCUS, Maxim. Holodiscus. Rosaceae. 

 Syn. Spiraea, in part. Shrubs with panicles of small white 



flowers. About 3 species, southwestern U. S. 



1015. H0L6STECM, L. Jagged Chickweed. Caryophyllaceae. 



From Greek, "wholly bone," appropriateness not obvious. 

 Insignificant herbs. Three species. Old World; 1 nat. in U.S. 



1016. H0L0Z6]VIA, Greene. Holozonia.. Compositae. 



Syn. Lagophylla, in part. Perennial herb with small flower- 

 heads. One species, California. 



1017. HOMALOBUS, Nutt. Milk Veteh. Papilionaceae. 



Syn. Astragalus, Kentrophyta, Ervum, in part. Perennial 

 herbs. About 6 species, Mexico and adjacent regions; 3 in U.S. 



1018. H06kERA, Salisb. Hookera. Liliaceae. 

 Named for Wm. Jackson Hooker, English botanist, d. 1865. 



Syn. Brodisea, in part. Scapose herbs. About 15 species. 

 New World; 8 in U. S. 



1019. h6rDEUM, L. - Barley. - Gramiiieae. 



The ancient Latin name, meaning perhaps "bristly". Grass- 

 es with flowers in close spikes. About 12 species. Synonyms 

 Bear, Bigg, Haules, Hoils, Pillards. 



a. H. viilgdre L. Orient, now widely cultivated in cooler climates. 

 To this species may be referred the numerous varieties of 

 Barley; Ger. Gerste; Fr. Orge; 1. Two-rowed Barley, H. dfsti- 

 chon L., including the Common English Barley, the Golden, 

 Italian and Siberian varieties; 2. the Six-rowed Barley, H. 

 hexdstichon L., including Scotch, Bear, Red and Square Bar- 

 ley; 3. the so-called Four-rowed Barley, H. vulgdre L., in the 

 restricted application of that name, including Russian and 

 French, Spring, Winter, Black. Naked and Wheat Barley; 4. 

 the Dinkel and related Barleys, H. zeocrilou L,, including 

 Turkish, Rice, Sprat, Battledore, Fulham and Putney Barley. 

 Seeds esculent. Husked seeds, Pearl Barley, Hordeum decorti- 

 catum, Br., Hordeum perlatum; Ger. Perlgerste, Perlgraupen; 

 Fr. Orge perl^ (Codex); nutrient. Seeds, sprouted and then 

 dried constitute malt, used in brewing and in preparation of easily 

 digested foods for infants or invalids. 



1020. HORKELIA, Cham. & Sch. Horkelia. Rosaceae. 

 Syn. Potentilla (Kew), in part. Perennial herbs resembling 



Potentilla. About 23 species. Pacific Border of U. S. 



