STANDLEY TREES AND SHRUBS OF MEXICO 1515 



5. Nocca mocinniana (DC.) Kuntze, Rev. Gen. PL 1: 354. 1891, as Noccaea 



mociniana. 



Lagascea mocinniana DC. Prodr. 5: 92. 1836. 



Mexico, without definite locality. 



Leaves ovate, acute, green on both sides, finely serrulate. (Description com- 

 piled.) 



A dubious species. The names "casanaca" and "zazanaca" have been 

 reported for this species, but perhaps relate to some other one. 



6. Nocca rigida Cav. Icon. PI. 3: 12. pi. 224. 1795. 

 Lagascea rubra H. B. K. Nov. Gen. & Sp. 4: 24. -pi. 311. 1820. 

 Noccaea rubra Cass. Diet. Sci. Nat. 25: 104. 1822. 



Mexico to Puebla; type from Mexico, without definite locality. 



Suffrutescent, about 2.5 meters high; leaves ovate or elHptic-ovate, 5 to 8.5 cm. 

 long, green and scabrid on both sides; proper involucres silky-villous, with lance- 

 subulate, unequal teeth; corollas "red." 



7. Nocca angustifolia (DC.) Kuntze, Rev. Gen. PI. 1: 354. 1891, as Noccaea. 

 Lagascea angustifolia DC. Prodr. 5: 92. 1836. 



Durango to Jalisco; type from Leon, Guanajuato. 



Shrubb}^; leaves 3.5 to 10.5 cm. long, subsericeous beneath when young, in age 

 usually scabrid; proper involucres densely silky-villous. 



8. Nocca pteropoda Blake, Contr. U. S. Nat. Herb. 22: 597. 1924. 

 Known only from the type locality, Cuyamecala, Cuicatlan, Oaxaca. 

 Suffrutescent (?), densely spreading-villous and stipitate-glandular on the 



branchlets, glabrate; leaf blades rhombic-ovate or oval, 4.5 to 10 cm. long, 

 subsessile by a contracted cuneate-winged base or short-petioled, rough above, 

 rather sparsely pilosulous beneath, serrate; inflorescence ternately divided, broad 

 and short, the glomerules large, leafy-bracted. 



9. Nocca pringlei Robinson, Proc. Amer. Acad. 36: 469. 1901. 

 Lagascea pringlei Robinson, Proc. Amer. Acad. 43: 38. 1907. 

 Known only from the type locality, Iguala, Guerrero. 



Suffrutescent, 1 to 2 meters high, puberulous and villous; leaves densely 

 cinereous-pilose beneath; teeth of the silky-villous proper involucres lanceolate, 

 very unequal; corollas 12 mm. long, purple. 



10. Nocca tomentosa (Roljins. & Greenm.) Robinson, Proc. Amer. Acad. 36: 

 470. 1901. 



Lagascea tomentosa Robins. & Greenm. Proc. Amer. Acad. 32: 43. 1896. 



Known only from the type locality, between Ayusinapa and Petatidn, Guer- 

 rero. 



Stem pilose and densely glandular-puberulous; leaves lance-ovate, 7.5 to 12.5 

 cm. long, gray-tomentose on both sides; bracts ovate-lanceolate; proper invo- 

 lucres villous, 6 mm. long, the teeth lanceolate, unequal; corollas 12 'mm. long. 



11. Nocca decipiens (Hemsl.) Kuntze, Rev. Gen. PI. 1: 354. 1891, as Noccaea. 

 Lagascea decipiens Hemsl. Diag. PI. Mex. 33. 1879. 



Sonora to Chihuahua and Jalisco; type from the Sierra Madre of northern 

 Mexico. 



Shrubby; leaves ovate, 3 to 6.5 cm. long, acuminate; peduncles terminal and 

 subterminal, up to 5.5 cm. long; corollas apparently whitish, 7.5 m.m. long. 



12. Nocca glandulosa (Fernald) Robinson, Proc. Amer. Acad. 36: 470. 1901. 

 Lagascea glandulosa Fernald, Bot. Gaz. 20: 534. 1895. 



Sinaloa and Chihuahua; type from head of Mazatldn River, Sinaloa. 

 This species is said to be scandent. 



