100 



Lysiloma Acapulcensis Benth., var. brevispicata, n, var. A large tree, 30 to 40 

 feet liigb, 1 foot or more in diameter: spikes very short, 6 to 10 lines ]oiij*.— Our 

 specimens are without fruit but seem to differ from this species ouly in the very 

 short spikes of ilowera. Near Alamos. March 26 to April 8. Xo. :]17. Palmer's 

 plant from Jalisco (1885) is a shrub only 12 feet high. I*ringle (1^89) has col- 

 lected the species in fruit from the same region. The trees are fast disapi)earing. 

 Dr. Palmer says it resembles the Mesquit and is a good durable wood and makes 

 a fine shade tree. Called " Tepehnaje." 



Pithecolobium Mexicanum, n. sp. Small tree, 15 to 20 feet high, 1 foot in diame- 

 ter : leaves with straight stljiular spines (sometimes wanting) 1 line long ; pinnie 

 2 to 5 pairs; leaflets 5 to 10 pairs, oblong, 2 to 4 lines long, midribs a little ec- 

 centric, pubernlent, as is also the rhachis and branches ; inflorescence paniculate ; 

 flowers in heads, pedicellate ; pedicels 1 to 2 lines long: calyx | line long: corolla 

 li lines long ; the petals spreading or reflexod : stamens long, numerous : legumes 

 oblong, somewhat constricted, 3 to 4 inches long, 1 inch broad, straight, its valves 

 not elastic nor revolutc : seeds 2, oval, 2 to 4 lines long.— In the Alamos Mountain. 

 March 2(> to April 8. No. 297. Seeming nearest P. albicans Benth., but peculiar 

 in its pedicelled flowers. Commonly called "Chino." The tree has much the 

 habit of the Mesquit and is valuable for its wood ; it is now rarely seen and is fast 

 becoming exterminated. 



Sedum Alamosanum "Watson. Proc. Amer. Acad. xxv. 148, This is the type, the 

 descriptions being drawn from the vegetative plant. The floral characters are 

 here appended: Kacomes 2 to8-flowered: flowers pinkish; sepals 1 lino long: 

 petals H to 2 lines long: stamens 10, Collected on the side of a ravine, halfway 

 lip the mountain. Alamos. March 2(5 to April 8. No. 273. 



Gronovia scandena L. This plant climbs over bushes and to the tops of the highest 

 trees. Alamos. September 16 to 30. No. 630. 



Cuphea calcarata Benth. (f ) Alamos, September 16 to 30. No. 729. 



Schizocarpum Palmeri Cogniaux and Eose, n. sp. Stem long and slender with short 

 close pubescence, intermixed with long scattered hairs, or becoming gl.abrato: 

 leaves 1 to 4 inches long, onpetiolesof about equal length, entire to deeply 3-lobed : 

 male flowers on peduncles 1 inch or more long, large, solitary, axillary, yellow ; 

 calyx short, tubular below, its lobes filiform ; corolla funnel-form ; stamens 3 with 

 distended tilamentsand with anthers elongated, more or less curved; pistil 

 none: fertile flowers suhsessile; calyx and corolla as in male-llower; ovary 

 glandular-pubescent, oblique, oblong, long rostrate, two-celled, each cell with 

 10 locelli in two rows ; style slender 2 to 3 lines long, with large bilobed stigma ; 

 ovules in the locelli, solitary ascending (!) ; fruit 1^ inches long, turgid, ovoid, 

 indehiscent or bursting irregularly, glabrous; seeds 3 to 4 lines long, glabrous, 

 black, flattened, tapering to an obtuse apex. — Climbs over fences and bushes 

 along water-courses and in canons near Alamos. September 16 to 30. No. 725. 



Echinopepon' cirrhopeduiiculatus, n.sp. Stems slender, climbing over bushes, 

 glabrous except a bunch of white hairs at the nodes : leaves variable from orbic- 

 ular with deep sinus and shallow lobes, to ovate with deep lobes and almost 

 truncate base ; the lobes and apex spiny tipped ; the upper surface white papillose 

 with short spiny hairs on the veins, below somewhat scabrous; petiole about the 

 length of the leaves, spinescent with a cluster of white hairs at the base of the 



1 There is still considerable difference of opinion aniong botanists as to the claims 

 of this group to generic rank. As held by Cogniaux and other distinguished botan- 

 ists this should be referred to Echiuocystis cirrhopedunculata. He says, however, 

 there is reason for either course—" vous verrez que j'ai 6t6 longtemps ind^-cis avanf. do 

 r6unir ces deux genres dans ma monographic : on pent donuer de bonnes raisoiis 

 pour la r<^nnion, et aussi pour la S('|iaratioa." Still others would refer this to 

 Micrampelis cirrhopedunculata., claiming that Rafiuesque's genus should be substi- 

 tuted for Echinocyatie. See Pitt. ii. 127, etc. 



