MEXICAN AND CENTRAL AMERICAN UMBELLIFER^ I3I 



5 to 8 rays, sessile or on short peduncles (often 6 to 12 cm. long) ; 

 rays 3 to 5 cm. long; involucre of i or 2 pinnate leaves; involucel 

 none; fruit short oblong, 3 mm. long, slightly cordate at base. 



Jalisco: on top of mountains w^est of Bolafios, Rose 2966, Sep- 

 tember 16, 1S97. 



5. Musejiiopsis submontana C. & R., sp. nov. 



From a spindle-shaped tuber, 3 dm. high, with slender, erect, 

 branching stems ; leaves once to thrice ternate ; ultimate divisions very 

 narrow and elongated, occasionally toothed ; umbels of 4 to 6 rays, 

 sessile on peduncles becoming 5 cm. long, with neither involucre nor 

 involucel; rays 2.5 to 3.5 cm. long; pedicels 7 mm. long; fruit im- 

 mature, f 



Tepic : in the foothills between Dolores and Santa Gertrudis, Rose 

 2064, August 7, 1897. 



6. Museniopsis tenuissima C. & R., sp. nov. 



Stems 6 to 9 dm. high from oblong tubers, slender and diffusely 

 branching, glabrous throughout ; basal leaves on long petioles, 6 times 

 ternate, the divisions widely spreading or even refracted ; ultimate di- 

 visions filiform, 3.5 cm. or less long; lower stem leaves somewhat 

 similar but smaller; upper leaves much reduced, the petioles to small 

 but conspicuous scarious sheaths, the leaflets few and short ; umbels of 

 3 to 5 rays, on peduncles 4 to 5 cm. long, with neither involucre nor 

 involucel; rays 2.5 to 3.5 cm. long; pedicels 2 mm. long, incurved; 

 flowers bright yellow ; fruit glaucous, nearly orbicular, slightly beaked, 

 rounded at base, 3 mm. long. 



Ja'lisco : cool shaded bluffs of mountains near Lake Chapala, 

 Pringle 5954, October 18, 1895. 



With much the habit of JST. peucedanoides^ but with different fruit 

 and root. The foliage is much like M. terfiata JilifoUa^ but the fruit 

 is smaller and the pedicels are shorter. Mr. Prmgle writes : "The 

 species must be rare, as I found it confined to the shaded bluff of a 

 deep ravine, and searched far and in vain through these mountains for 

 another station." 



7. Museniopsis tuberosa C. & R. Contr. Nat. Herb. 3 : 303. 1895. 



Velcea tuberosa Drude, in Nat. Pflanzfam. 3^ : 169. 1898. 



Oaxaca : Sierra de San Felipe, altitude 2100-2400 meters, Charles 

 L. Smith S97, October 2, 1S94. 



8. Museniopsis glauca C. & R., sp. nov. 



Stems about 5 dm. high, erect and much branched above ; leaves 

 thrice ternate, ultimate segments filiform ; uppermost ones reduced to 

 little more than a scarious sheath ; umbels of 5 to 8 rays, loose and 

 spreading, with neither involucre nor involucel; i^ays 2 to 4 cm. long; 



