SCIENTIFIC a:;d popular. 121 



692. CRATAEGUS, L. Hawthorn. Pomaceae. 

 Greek name of a kind of thorn having ''tough' ' wood. Syn. 



Mespilus, in part. Thorny shrubs or small trees. About 50 

 species, north temperate zone, Mexico and S. America; 23 in 

 U. S. 



•a. C. Oxjacdntlia L. Europe and Asia, nat. in U. S. English 

 Hawthorn (Playthorn, Hathorn), Haw-tree, Hedge-thorn, 

 White or May Thorn, May-bush, May Quick-set, Wick, 

 Wickens; var. praecox is the Glastonbury Thorn; Ger. Hage- 

 dorn; Fr. Aub^pine. I^ruit called haws, whence the name 

 Hawthorn. 



Of American species, the more noteworthy are (b) C. aes- 

 tivalis (Walt. ) T. and Gr., May Haw, Apple Haw of southern 

 states {fruit used for jellies); ( c) C. eoiccineaL., Scarlet Thorn 

 or Hawthorn, White or Ked Thorn'^; (d) C. cordata (Mill.) 

 Ait. (M. cordata Mill., C. populifolia Walt.), Washington 

 Thorn, American Hedge-thorn; (e) C. Crusg'alli L., Cockspur 

 Thorn, Newcastle Thorn, Pin Thorn; (f) C. tomentosaL., Pear 

 Thorn, Black Thorn, Common or White Thorn, Pear Haw; 

 (g) C. uuiflora Moench (C. parvifolia Ait. ), Dwarf Thorn, 

 suited for low hedges. Fruit of several species called red haws, 

 occasionally thorn-plums or thorn-apples. 



693. CRATAEVA, L. 1759. Garlic Pear. Capparidaceae. 



Named for Crataevus, ancient Greek herbalist. Syn. Tapia, 

 Adans, 1763. Shrubs or trees. About 18 species, tropical 

 regions. 



a. C. gyndndra L. Jamaica. Garlic Pear. Bark of root epispas- 

 tic. 



694. CREPIS, L. - Hawk's-beard. - Ciehoriaceae. 



From Greek, ''sandal". Herbs resembling Hieracium. 

 About 180 species, northern hemisphere; 23 in U. S. 



696. CRESCENTIA, L. Calabash tree. Bignoniaceae. 



Shrubs or trees. About 15 species, tropical America; 1 in 

 U. S. 



a^ C. Cujete L. (C. acuminata H. B. K., C. angustifolia Willd. 

 C. Cujute Auct. ). Tropical America. Calabash tree. Fruit 

 calabash-like. 



696. CRESSi, L. - Cressa. - Coiivolvulaceae. 



From Greek, "Cretan". Low perennial herbs with small 

 flowers. Two known species, widely difiused, both in U. S. 



697. CRINUM, L. - Lily*. - Amaryllidaceae. 



Greek name of a Lily. Ornamental bulbous plants with lily- 

 like blossoms. About 60 species, warmer regions Old and New 

 World; 1 in U. S. 



\698. CRISTALELLA, Nutt. Cristatella^ Capparidaceae. 



Latin dim. of cristata, ''crested". Viscid herbs. Two 

 species, both of south-central U. S. 



