Nuttall gen, am. 1..pı 272 
(1818). 
Nylander spie. fl, fenn. I. 2.51. 
—— Paroic, Pojo n. 274 ete. 
Oeder (Horaem.) f. dan. 55, 
110. 402. 1336. 1693. 1816. 
1817. E. B. tab. 213. 517. 
1945. 2543. 
Pallas It. I. p. 179; II, p.19%; 
IL p. 819. j j 
Petiv. mus. 62%. 
Pluck, mant. p. 157. tab. 349, 
Poiret eneyel. V, p. 741. 
Pollinius R. veron. 11. p. 11. 
Pursh D. am. sept, ed, 2%, I 
p- 299. (1814). 
Radius dies. de Pyr. et Chim. 
(1821). 
Reichenbach A. exs. V. p. 415. 
Retzius pr. 9. Scand. p. 79. 
Richardson in Frankl 1. Journ. 
ed. 2. app. -p. 13. 
Bivin _ord. pl, MI. iab. 186 — 
138. 
Roehling fi. D. ed. 2. 11. p. 252. 
Roth 9.D. I, p. 181; 11. p. 46%. 
Roithoeill in act. hafı. X. p. 444. 
Rudbeck hort. p. 95. 
Ruprecht fi: Samoj. eisurul. n. 
126. n. 179. 
Schleicher cat. 
11 
Sehultes 1, austr. I. p. 630, 
Schumacher en. pl. Saell, L 
p. 135. 
Seringe mus. helr. sust, 2% 
p- 33. . 
Schkuhr Handb. tab. 119. 
‘Smith engl. bot. tab. 213, 307, 
517. 1945. 2543, 
— fl. brit. ed. Schult. Il, p. 444, 
— in Rees cyel. v.28. n. 6. 
Savi bot. 'etrusc, I. p. 234. 
(1815). 
Sowerby engl. bot.. tab. 213, 
146. 
Sprengel il. Hal. p. 127. 
— syst. I. p. 317, 
Stephan A. mosq. n. 281. - 
Sturm fl. D. Heft. 13. 
‚Steven in mem. d. 1, soo. d, 
Mosq. UN, p. 261. 
Snfren, ferojul. p. 139. 
'Swartz Svenk. bot. tab. 1304. 
550. 
Swartz in act, holm. (1804) p. 
257. tab,7; (1810) p. 190, 
tab, 5 
Torrey . Un. st. I. p. 43%, 
Tournef. inst, 132, " 
Trag. hist, p. 707; 
Transact. of am, phil. Soe. at 
Philad, (1843) VH, p. 251. 
* Turezanı cat. baik. 2, 948 ete. . 
