112 



I have l)oeii able to examine a duplicate type of this at the Cray Herbarium. The 

 species, while closely related to the last, appears to be distinct, having somewhat 

 different carpels and seeds, less pellucid leallets, etc. 



Explanation of Plate.— Fig. 8, capsule; tig. 9, seed; scale j, 



SPECIES OF OTHER GENERA. 



Amyris thyrsiflorus Tnrcz. Hull. Soc Nat. Mosc. 21, pt. 1 : 475. 1858. 



Collected by Mr. E. \V. Nelson at San Andres Tnxtla, State of Vera Crnz, altitude 

 328 meters, May 7, 1894 (No. 153). 



This is the only representative we have of this species. It answers the original 

 description fairly well except that the petioles and petiolules can hardly lie said to 

 bo winged. 



The type of this species also came from Vera Cruz. 



Pilocarpus longipes Rose, sp. nov. 



A shrub 15 to 36 dm. high, glabrous throughout; leaflets 3 to 5, rarely solitary, 5 

 to 10 cm. long, oblong, obtuse to refuse, broadly cuneate at base, strongly reticulate 

 and glabrous above and beneath; raceme 3 to 5 dm. long; pedicels horizontal in 

 flower, ascending in fruit, 20 to 25 mm. long, glabrous, with 1 or 2 small bracts 

 just beneath the flower; fruit deeply 5-lobed or parted, 1 to 5 maturing; mature 

 coccus glabrous with parallel semicircular grooves, 10 mm. in diameter; seeds black, 

 glabrous, 6 to 8 mm. long. 



Collected by Dr. Edward Palmer on shady hillsides near Acapulco, Mexico, Feb- 

 ruary, 1895 (No. 514). 



This seems nearest the Brazilian species /'. sehxnius, but has the bracts of the 

 pedicels differently situated, fewer leaflets, etc. 



Pilocarpus has not heretofore been reported from Mexico. 



Triphasia trifoliata DC. Prodr, 1: 53(3. 1824, 



Shrul< 18 to 30 dm. high; ltowers very fragrant ; fruit red. In cultivation at Aca- 

 pulco, February, 181)5 (No. 467). 



The plant is often used for hedges. The fruit is made, into a kind of jelly. 



Zanthoxylum arborescens Rose, sp. nov. 



Small tree, 30 to 36 dm. high; branches with few short, scattered thorns; leaves 

 large; leallets 3 to 7, mostly 5, very variable, the larger ones 15 cm. long, oblong, 

 tapering at base, the terminal leaflet more cuneate, slightly crenate, becoming gla- 

 brae above, puberulent beneath, especially on the veins; panicles open, terminal, 

 puberulent (as well as young branches and rachis of leaves) ; calyx small; petals 

 5, reflexed, greenish-yellow; stamens 5, a little longer than the petals; styles 2; 

 ovary 1-celled, 2-ovn]ed; seed 5 mm. long. 



Collected by Dr. Edward Palmer along river banks and in arroyos, Ymala, August 

 16 to September 25, 1801 (No. 1454, immature fruit; No. 1455, in flower) ; and October 

 18, 1891 (No. 1405a, mature fruit). 



A very distinct species and seemingly nearest the rare species Z. melanostrictum. 



Zanthoxylum pterota (L.) II. B. K. Nov. Gen. & Sp. 6: 3. 1823. Fagara ptcrota 

 L. Syst. ed. 10: 897. 1759? 

 Collected by Dr. Edward Palmer at Ymala, August 16 to 25, 1891 (No. 1424). 



Zanthoxylum foetidum Rose, sp. nov. 



Shrub 3 to 6 meters high ; brandies dark green and nearly glabrous; thorns plen- 

 tiful, small, recurved and sharp; leaves compound; leadets 3 to 5, lanceolate, petio- 

 late, 2.5 to 6.2 cm long, shortly acuminate, cuneate at base, crenate, puberulent on 

 the veins beneath, thickly set with pellucid dots; panicles axillary, puberulent, mauy- 

 llowered, 2.5 to 5 cm. long; sepals 4; petals 4; stamens with filaments longer than 

 the petals; anthers ovate with a large gland at the tip; styles 2; fruit very 

 glandular. 



