310 PLANT NAMES AND SYNONYMS 



d. P. santalinus L. f. (L. santalinum (L. f . ) O. Kze. ). India. 

 The wood is Eed Sandalwood, Red Saunders, Eed Santal, Red- 

 wood* Ruby-wood; tantalum rubram, U. S. P., Pierocarpi 

 Lignum Br., Lignum santalinum rubrum; Ger. Rothes Sandel- 

 holz; Fr. Santal rouge (Codex) ; Sp. Sandalo rojo. Yields a red 

 dye. 



1683. PTEROCAI^LON, Ell. Indian Black- root. Compositae. 



From Greek, ''wing Ptem". Syn. Conyza, Chsenobolus, 

 Gnaphalium, in part. Perennial herbs. About 10 species, 

 America and Australia; 3 in southeastern U. S. 



a. P. pychnostachyuin Ell. (C. pychnostachya Michx., G. undu- 

 latum \Valt, ). Southeastern U. S. Indian Black-root. Boot 

 alterative, narcotic, (b) P. virgatnm DC. Texas, Mexico 

 and West Indies. Jamaica Golden-locks, Golden-tuft, Golden 

 Cudweed. 



1684. PTEROSPORA, Nutt. Pine Drops, etc. Monotropacoae. 



From Greek, "wing seeded". Syn. Monotropa, in part. 

 Leafless saprophyte. One species, U. S. 



a. P. Aiidromedea Nutt. 1818. (M. procera Torr. 1818). British 

 America, south to Pennsylvania, Arizona and Calitornia. Pine- 

 drops, Albany Beech-drops, Giant Bird's-nest, False Crawley, 

 Gall-of-the-earth. 



1685. PTEROSTEGIA,Fisch & Mey.Pterostegia.Polygonaceae. 

 From Greek, "wing" and "covering". Herb. A single 



species, California. 



1686. PTILiMNIUM,Raf.l825.MockBi8hop-weed.Umbelliferae. 

 Syn. Discopleura, DC. 1829; Ammi, Peucedanum, in part. 



Annual herbs. About 4 species, America and East Indies; 3 

 in U. S. 



a. P. capillaceum (Michx.) Hollick (A. capillaceura Michx., 

 D. capillacea DC). Atlantic and Gulf border of U. S. 

 Mock Bishop-weed, Bolewort, Bullwort, Herb William, W^ood- 

 nep. 



1687. PTILOCALAIS, Greene. Ptilocalais. Cichoriaceae. 



Syn. Microseris, in part. Herbs. Three species, western 

 U. S. 



1688. PTILONELLA, Nutt. Ptilonella. Compositae. 



Syn. Blepharipappus, in part. Herbs. Two species, west- 

 ern U. S. 



1689. PTIL6rIA, Raf. 1832. Ptiloria. Cichoriaceae. 



Syn. Stephanomeria, Nutt. 1841, also Lygodesmia, in part. 

 Herbs with small heads of pink flowers. About 20 species^ 

 western and central N. America; 18 in U. S. 



1690. PTYCH6tIS, Koch. Bishop' s-weed. Umbelliferae. 



Syn. Carum (Kew), Ammi, in part. Herbs related to Carum. 

 A few species, Mediterranean region to India. 



