MEXICAN AND CENTRAL AMERICAN UMBELLIFER.'E 155 



pedicels 6 mm. long; fruit orbicular, 6 to 8 mm. in diameter; seed 

 flattened dorsally, with a broad concavity ; oil-tubes solitary in the 

 intervals or often with i or 2 shorter accessory ones, 2 on the commis- 

 sural side. 



Federal District : on the Serrania de Ajusco, altitude 3000 meters, 

 Pringle 7176, August 18, 1896, also 6674, in 1897. 



4. Deanea diffusa C. & R., sp. no v. 



Stem tall, glabrous and glaucous; stem leaves large, 4 to 5 times 

 ternate; petiole, so far as seen, short, 2.5 to 5 cm. long; leaflets 2.5 to 

 3.5 cm. long, cleft or sti-ongly toothed and the lower segments again 

 toothed; inflorescence very diffuse, glabrous throughout; peduncles 

 short (2.5 cm. or less long) ; rays 4 to 6, nearly equal, 12 to 20 mm. 

 long; pedicels 2 to 3 mm. long; involucre wanting; involucel of few 

 filiform bractlets; fruit glabrous; carpels oblong, 12 to 14 mm. long, 

 8 to 10 mm. broad, cordate at base, with narrow body and broad thin 

 wings; oil-tubes i to 3 in the intervals, 6 on the commissural side; 

 seed section nearly circular, the margins strongly involute, inclosing a 

 small cavity. 



Morelos : on lava beds near Cuernavaca, Prittgle 71 77? September 

 17, 1896. 



5. Deanea montana C. & R., sp. nov. 



Stems about 9 dm. high, glabrous, and somewhat glaucous; leaves 

 two to three times ternate ; ultimate segments ovate, acute, somewhat 

 irregularly cleft or serrate, glabrous; peduncles usually elongated, 

 sometimes 20 to 25 cm. long, occasionally wanting; rays about 10, 4 

 to 6 cm. long; involucre wanting or of i or 2 bracts; involudfel of 

 several linear bractlets; pedicels 4 to 5 mm. long; fruit shortly ob- 

 long, about 7 mm. long, glabi'ous ; oil-tubes 3 in the intervals; seed- 

 face concave ; stylopodium low and broad. 



Zacatecas : on the Sierra de los Morones near Plateado, altitude 

 2700 meters, Rose'T^622,^ September i, 1897. 



6. Deanea nelsoni C. & R., sp. nov. 



Stems 9 to 12 dm. high, glabrous throughout; leaves 3 to 4 times 

 ternate; ultimate segments ovate, acuminate, sharply and irregularly 

 serrate or cleft; upper leaves mostly alternate; inflorescence some- 

 what irregular ; pedicels short; involucre wanting or of one or more 

 linear bracts ; involucel of 5 or 6 lanceolate-linear acuminate bractlets 

 extending beyond the flowers; rays few (4 to 10), nearly equal, 18 to 

 30 mm. long; pedicels 4 mm. long, slightly scabrous, as are also the 

 rays ; fruit strongly flattened dorsally ; carpel oblong or slightly 

 broader above, 16 to 18 mm. long, 10 mm. witle, truncate or nearly 

 so at top, slightly cordate at base, glabrous, with narrow body and 

 broad wings; seed-face with strongly involute margins; oil-tubes 3 in 

 the intervals; flowers "dull yellow.'' 



Chiapas : Valley of Jiquipilas, altitude 660-S40 meters, Nelson 

 2938, August 16-18, 1895. 



