112 



stylos 3, thrice dicTiotomons ; seeds 3, 2 lines Ions: male flowers more numerous; 

 calyx 5-parted, petals 5, white, glabrous without, villoae withia; stameus 12 to 

 13 with glabrous lilaments.-On sandy ridges and along creek bottoms under 

 shrubs neai- Alamos. March 20 to April 8. No. 324. Found in flower and irnit 

 Sept. 16 to 30. No. 742. belongs to the anbsectious CycJostigma, perhaps near C. 



heterocalyy; 

 Acalypha polystachya Jacq. The larger leaves 4 to 5 inches long on petioles ,. to 

 6 inches long; the long filiform lubes of the involucre, ciliate with glanduhir- 

 tipped hairs. Grows along water-courses near Alamos. Sept. 16 to 20. No. 724. 

 This is A. fiUffra Watson, which seems to be only a form of the above species. 

 Acalypha subviscida Watson. Proc. Amer. Acad. xxi. 440. Leaves with shorter 

 petioles than in the type; fertile spikes, sometimes staminate for half the length 

 above; style-branches, long, pnrplish; staminate spikes, occasionally 2 or 3 from 

 a common peduncle, generally with an abortive pistillate flower at tip. Collected 

 in a canon near Alamos, Sept. Ifi to 30. No. 641. 

 Sebastiania Palmeri, n. sp. A loose-growing shrub 5 to 8 feet high, or sometimes a 

 small tree 10 feet high, 5 inches in diameter, glabrous, dioicious: leaves lance- 

 olate, to narrowly lanceolate, n to 4 inches long, inclnding petiole 6 lines long, 

 slightly flentate: female flowers solitary, sessile; calyx 3-parted, its lobes oval, 

 serrate; petals none ; styles 3, cmiiiate at base, entire; ovary 3-celled; valves con- 

 torted after dehiscence; seeds 1 in each cell, globose, 2 lines in diameter without 

 a strophiole.— Seen in various places about Alamos. March 26 to April 8. No. 

 403; also in September. Letter A. The natives speak of it as "Palo do la 

 tlechaque de los semas brinca doras"— "the arrow-wood which produces the 

 jumping beans." The generic position of the plant in which Carpocapsa ia 

 found has long puzzled the botanist and entomologist. This is partly due to 

 the fact that the fruit which is stung (and this is the kind that is generally col- 

 lected) appears very diflerent from those developed naturally. While this is 

 evidently a new species, still some uncertainty exists as to its position. Its 

 relationship is doubtless with SehaHtiania, but it has close affinities with both 

 GunimvUhus and Bonania ; in habit it seems closer to the latter than to either the 

 other two, however its minute or obsolete calyx seems to be sufficient to keep 

 it out of that genus. It has the rudimentary calyx and connate stamens of 

 G}imnanlhu8, but has dehiscent and contorted carpels which are thin walled; 

 carpophore wanting; leaves serrate: all of which is at variance with this 

 genus, but corresponds with lionama. Dr. Palmer says the boys gather these 

 beansi for which they find a ready market at Alamos. None of the beans which 

 had b'oen stung were obtained, as they had all been carefully gathered before 

 Dr. Palmer's visit and none of the so-called "jumpers" could be obtained at 

 Alamos at this time. The plant produces an abundance of milk, which is 

 said to be used by the Indians for poisoning their arrows. The milk readily 

 crystallizes into a clear, rather brittle substance, and is a violent cathartic. 

 The wood is very hard. 

 Ficus, sp. Alarge tree with many wide-spreading branches, 2 feet in diameter, with 

 thick, corky bark: leaves alternate, oblong-lanceolate, acnte at both ends, 4 to 

 G inches long, on a petiole 9 to IG lines long: fniit nearly globose, 10 lines in 

 diameter on a very short pedicel (2 lines long). Near Alamos. March 26 to April 

 8. No. 367. The fruit is very abnndant and edible and is called " Chalala." 

 Dr. Palmer collected the same species at Hacienda San Miguel in southwest 



Chihuahua in 1885. 

 Tillandsia recurvata L. This plant was found growing on oaks. Alamos. March 



26 to April 8. No. 372. 

 Heteranthera limosa Vahl. Alamos. Sojitember 16 to 30. No. 731. 

 Commelina Virginica L. Alamos. September 16 to 30. No. G63. 



