115 



Epicampes ccerulea (?) Often 5 feet high. It grows in wet lands near the mouth 

 of Yacque Kiver ; it isbron<;;ht in hundles to Gnaymae, where it ia used to thatch 

 out-bnildings and the dwellinj^s of the poor. March 26 to April 8. No 414. 

 Bouteloua aristidoides Thiirb. Very common on bottoms and level places among 



hills. Alamos. September IC to :]0. No. Gt)7. 

 Bouteloua AlamosanaVasey, n. sp. Apparently annual, culms tufted, mostly decnra- 

 beut or prostrate, 3 to 6 inches high: leaves narrow, 1 to 1^ inches long: panicle 

 racemose, 1 to 1^ inches long, with 3 to 5 spikes, each composed nf :5 to 4 crowded 

 spikelets, about ^iiudi in length : spikcleta 2-tlowered : empty glumes linear, 2 to 

 3 lines long, the upper scabrous on the keel: glume of fertile llower oblong- 

 lanceolate, 3^ lines long, 3-toothedand :5-awned, its palet as long, bifid at apex: 

 glumes of sterile flowers with the body about two lines long, 2 lateral lobes reach- 

 inf nearly to the base, 4 lines long, the central one ^t lines long. — Many plants 

 growing together on rocky ridges. Alamos. September 10 to 30. No. 698. 

 Bouteloua polystachya Torr. In gravelly soil with underbrush. Alamos. Sep- 

 tember 16 to 30. Nos. 751, 791. 

 Bouteloua polystachya Torr. Var. ? Nos. 751, 791. 



Leptochloa mucronata Kuntli. In garden with other grasses near Alamos. Sep- 

 tember 16 to 30. No. 699. No. 749 grew in low wet places near tide lands at 

 Agiabami)0, 

 Diplachne viscida Scrib. Found at the base of the hill in a moist place. Alamos. 

 September 16 to 30. No. 748. No. 748^, same plant, collected in a swamp at 

 Agiabampo. 

 Eragrostis ciliaris Link. ? No. 688 ; and 

 Eragrostis major Host. Found in cultivated field; used in stables at Alamos. 



September IG to 30. No. 689. 

 PinuB oocarpa Schiede, A small tree, 25 feet high, 1 foot in diameter, with pend- 

 ent leaves, 8 to 9 inches long : cones about 2i inches long ; apophysis 4 to 5-sided 

 with a somewhat elevated umbo which is especially strong toward the base; 

 seeds 6 to 7 lines long. Collected near the summit of Alamos Mountain. March 

 26 to April 8. No. 374. 

 The seeds of this species are described as being an inch long, and the trees are said 

 to be 40 feet high. As is generally known, Dr. Engelmann found in his study of 

 the leaves of pines that the resin ducts might occupy one of three positions in 

 the parenchyma, vi/, internal, parenchymatous, or peripheral. In this species 

 the ducts are peculiar and can not be assigned to any of the group. On each 

 side of the leaf are two ducts which with the surrounding strengthening cells 

 completely separate the parenchyma tissue into distinct regions; the ducts ex- 

 tend from the fibro-vascular bundle to the epidermis or its underlying strenghten- 

 ing cells. These ducts have the paradoxical position of being both peripheral 

 and internal. Dr. Engelmann in his arrangement places this species in the sec- 

 tion with internal ducts, but says he occasionally found parenchymatous ones. 

 Wo have not seen his specimens, but Talnier's plant of 1886 referred here by Mr. 

 Watson has similar ducts. Dr. Palmer says there were many young plants which 

 would be especially fine for cultivation. 

 Notholaena Candida Hook.' Found under shade of rocks half-way up the mountain. 



Alamos. March 26 to April 8, No. 341. 

 Notholsena Lemmoni D. C. Eaton.' From mountain caiions. Alamos. September 



16 to 30. No. 669. 

 Selaginella cuspidata Link.' Under shade. Alamos. September 16 to 30. No. 



672. 

 Notholaena sinuata' Kaulf. Grew in shade near Alamos. September 16 to 30. 

 No. 671. 



> These plants were determined by Henry E, Seaton. 



