46 MISSOURI BOTANICAL GARDEN. 
marked, 6 to 8 mm. tall; seeds about 5 mm. long, 3.5 to 
4 mm. broad. — Plate 11. 
Specimens examined from Texas (Nealley, no. 178a = 454, Santa 
Maria, Cameron Co.); Mexico (Berlandier, nos. 824, 1540, 2244, 3003, 
3040, 3212 in part and 6503 = 1503 ?, Matamoros to San Fernando, 1828- 
43; Pringle no. 3079, Las Palmas, no. 11384, San Luis Potosi to Tampico, 
is staminate and corresponds to no. 1147). 
3. Leaves elongated-oblong to linear. 
C. tinearis Jacq. [Enum. Pl]. Carib. 32. 1760], Amer. Hist. 
Nat. 257. ¢. 162. f. 4.1763; Lamarck, Encycl. Meth. 
Bot. 2: 204. 1786; Aiton, Hort. Kew. 3: 374. 1789; 
Geiseler, Crot. Monog. 6. 1807; Bennett, Jour. Proc. 
Linn. Soc. 4: 30. 1860; [F. Daniell, On the Casca~- 
rilla Plants 13. ¢. 3. f. 2 and 3. 1863]; Muell. Arg. in 
DC. Prod. 157: 615. 1866; Chapman, Suppl. Fl. 
South. U. S. 648. 1883. C. Cascarilla Linn. Sp. Pl. 
1423. 1763. [2d and 3d ed.]; Griseb. Fl. Brit. West 
Ind. 38. 1864; Woody. Med. Bot. 629. ¢. 222. 1832; 
Geiseler, Crot. Monog. 8. 1807. (C. hippophaeoides 
Rich. in Ram. de la Sagra, Hist. Nat. ete. Cuba 11: 
212.1850. Clutia Cascarilla Linn. Amoen. Acad. 5: 
411. 1759. — Not Sp. Pl. ed. 1. 
Form A.* Shrub 1 to 2 m. high, di- or trichotomous, 
branches scabrous and grayish, the current wood and in- 
* Form B, and probably form A, are specifically distinct and the dis- 
position here made of them is to be regarded as tentative only. I was 
not able to personally examine an authentic specimen of Croton linearis or 
C. Cascarilla, but sent specimens of each of our forms to Kew for verifi- 
cation, which was very kindly done. They were returned with the 
following notes : — 
(186, Simpson. | 
This is true Croton linearis, Jacq. It varies much in the breadth and 
obtuseness of its leaves; in some of the Kew specimens they are 4-5 
times as broad as in this specimen and obtuse or retuse.’? 
[Signed] N. E. Brown. 
“ 5360, Curtiss. 
This appears to be scarcely more than a variety of C. linearis Jacq., its 
leaves varying exactly in the same way, one specimen at Kew (Eggers, 
