28 PROCEEDINGS OF THE AMERICAN ACADEMY. 



2.4 cm. broad, the nerves conspicuously pilose beneath ; petioles 2 to 

 4 mm. long, pilose : strobiles globose or short-oblong, about 1 cm. long. — 

 Guanajuato, mountains of Santa Rosa, April, 1901 {A. Duycs^) 



V. — DIAGNOSES AND SYNONYMY OF MEXICAN AND 

 CENTRAL AMERICAN SPERMATOPHYTES. 



By J. I\I. Greenman. 



Echeandia Pringlei, n. sp. Roots fascicled, tuberiform ; the tuber- 

 ous portion 1 to 2 cm. long, 5 to 7 mm. in diameter : leaves chiefly 

 radical, 1 to 4 dm. long, 2 mm. broad, about 9-nerved, glabrous on both 

 surfaces, more or less involute, hirtellous-ciliolate-margined, firm in 

 texture, yellowish in the dried state, sometimes falcate ; the fibrous portion 

 of the bases of the older leaves persistent around the base of the scapi- 

 form stem : scape simple or branched, 2.5 to 4 dm. high, bearing 1 to 3 

 leaf-like bracts : floral bracts lance-ovate, acute, scarious : flowers two in 

 the axil of each bract; pedicels 5 to 10 mm. long, jointed below the 

 middle: perianth white; divisions lanceolate, about 1 cm. long, 1.5 to 2.5 

 mm. broad, acute, 3-nerved : stamens nearly or quite as long as the 

 perianth-divisions; anthers united into a tube 6.5 to 8 mm. in length: 

 capsule oblong, 6 mm. long, transversely nerved. — Mexico. State of 

 Jalisco : Etzatlan, collection of 1903, C. G. PringJe, no. 11,852 (hb. Gr.). 



Sisyrinchium macrophyllum, n. sp. Erect, 4 to 6 dm. high, gla- 

 brous throughout : roots long, fleshy, almost tuberous: stems narrowly 

 winged, leafless to the first fork, branched above into a several-headed 

 inflorescence: leaves lance-attenuate, 5 to G dm. long, 1 to 5 cm. broad, 

 acute, prominently nerved, narrowly subcartilaginous-margined : bracts of 

 stem and inflorescence lance-acuminate, 8 cm. or less long : peduncles in 

 fruiting specimens 5 to 8 cm. in length ; spathes 2-5-flowered ; valves 

 lanceolate, 3 to 3.5 cm. long, acute, the outer sliglitly shorter than the 

 inner: capsules oblong, triangular, 1.2 to 2 cm. long, one half as broad, 

 glabrous: seeds subspherical, 2 mm. in diameter. — Mexico. State of 

 San Luis Potosi : Alvarez, 28 September to 3 October, 1902, Dr. 

 Edward Palmer, no. 205 (hb. Gr. and hb. U. S. Nat. Mus.). 



Phoradendron Palmeri, n. sp. Pubescent throughout; younger 

 parts subtomentose : stem and branches terete: leaves narrowly oblong or 

 oblong-spatulate, 1 to 3.5 cm. long, 3 to 8 mm. broad, obtu.^e, entire, 

 narrowed below into a subpetiolate base : spikes of fertile flowers solitary, 



