BEITISH AND IRISH BOTANISTS. 169 



1852; F.E.S. Surgeon, Bengal Army. Prof. Bot., Calcutta 

 Medical Coll. Superintendent, Calcutta Bot. Gard., 1854. 

 ' Flora Indica ' (with J. D. Hooker), 1855. ' Western Hima- 

 layas and Tibet," 1852. Collected in Kashmir, &c. Plants 

 at Kew, Brit. Mus., &c. Jacks. 612; E. S. C. v. 976; viii. 

 1080; Gard. Chron. 1878, i. 529; Journ. Bot. 1878, 160; 

 'Nature,' xviii. 15; Proc. Geogr. Soc. xxii. 309. Crayon 

 portr. at Kew. Hedyotis Thomsoni Hook. f. 



Thomson, William (fl. 1830). M.A. Of Manchester. 'Eo- 

 lation between Strata and Plants,' Mag. Nat. Hist. 1880, 

 410. ' Botanical notes on Llandudno,' Mem. Lit. Phil. Soc. 

 Manchester, 2nd ser. v. 165. E. S. C. 976. 



Thomson, Rev. William Cooper (fl. 1820-71). Nephew of 

 George Thomson (2). Missionary in Calabar from 1849 to 

 1865. Afterwards practised Medicine in Liverpool. ' Ferns 

 from Old Calabar,' Trans. Bot. Soc. Ed. vi. 357 (1860). 

 E. S. C. V. 976 ; ' Memoir of George Thomson,' 1881. 



Thornhill, John (fi. 1803-40). Of Gateshead. 'Fasciculus of 

 Grasses,' 1806. ' Bot. Guide ' (with Winch & Waugh), 1805. 

 Contrib. to Eng. Bot. 1163, 2807, &c. Jacks. 267. Phascum 

 bryoides var. Thornhillii Wils. 



Thornton, Robert John (1758 ?-1837) : b. circ. 1768; d. 

 London, 21 Jan., 1887. M,B. Camb., 1798. M.D. St. 

 Andrew's, 1805 ; L.E.C.P., 1812. Succeeded J. E. Smith 

 as Lecturer on Bot. at Guy's Hospital. ' Temple of Flora,' 

 1799-1804. ' Practical Bot.,' 1808. ' Philosophy of Bot.,' 

 1809. 'Family Herbal,' 1810. Pritz. 816; Jacks. 612; 

 E. S. C. V. 982 ; Munk, iii. 98 ; Gent. Mag. 1887, ii. 93. 

 Engr. portr. by Eidley, after crayon by Eussel, E.A., 1808, 

 at Kew ; one by Hill, after the same, in ' Family Herbal ' ; 

 one by B. Thomson, after Harlow, in ' Outline of Botany ; 

 and one by Bartolozzi, after Eussel, in ' Temple of Flora.' 

 Thorntonia Eeichb. = Pavonia. 



Threlfall, William (1862-88): b. HoUowfork, Preston, 1862; 

 drowned in E. Dryala, Kurdestan, March, 1888 ; bur. Bagdad. 

 B.A. Oxon, 1886; F.L.S., 1887. Was investigating Oriental 

 Flora. Proc. Linn. Soc. 1887-8, 98. 



Threlkeld, Rev. Caleb (1676-1728) : b. Keiberg, Kirk Oswald, 

 Cumberland, 31 May, 1676 ; d. Dublin, 28 April, 1728 ; bur. 

 St. Patrick's. M.A. Glasgow, 1698. M.D. Edin., 1712. 

 ' Synopsis stirp. Hibern.,' 1727. Had a private bot. gard., 

 Loudon, Encycl. Gard. 282. Pult. ii. 196 ; Pritz. 316 ; Jacks. 

 612 ; Pref. to ' Synopsis ' ; Stewart & Corry, xiv. ; Eose. 

 Threlkeldia Br. 



Thwaites, George Henry Kendrick (1811-82) : b. Bristol, 

 1811; d. Kandy, Ceylon, 11 Sept., 1882. Ph.D.; F.L.S., 

 1854; F.E.S. C.M.G., 1878. Local Sec. Bot. Soc. Lond., 

 1839. Lectured at Bristol, 1846. Superintendent, Pera- 

 deniya Bot. Gard., 1849; Director, 1857-80. Contrib. 

 Bristol list to Top. Bot. and to Phytol. from 1841. 

 ' Enumeratio PI. Zeylanise,' 1858-64. Described Dasygloia 

 amorpha for Eng. Bot. (2941). Pritz. 818; Jacks. 612; 



