113 



Tradescantia Palmeri, n. sp. Stems erect, 6 to 9 inches high, glabrous, or with a 

 pubescent line : leaves lanceolate, 1 to 2^ inches long, glabronaexceiit theciliate 

 margin (and sheath), sessile, acute: umbels pedunculate (1 to2inches long), 4 to 

 9-flowered : pedicels 3 to 5 lines long : sepals oval, IJ lines long : jtetals white, 

 li linos long: stamens 6 ; filaments naked, the 3 longer with dilated filaments; 

 the 3 shorter almost sessile: style short: cells 3, each with 2 ovules : seeds 3, 

 triangular, 3-lobed, the margins revolute. — Found in moist shady places among 

 rocks near Alamos. September 16 to 30. No. 737. 



It differs from most species of Tradescantia in its one-seeded cells; the ovules 

 however are two, the lower being abortive. The filaments dilTer considerably in 

 length, but the anthers are but slightly different. It is perhaps nearest the T. 

 amplexicaulis and yet I am not certain this is the proper section. It resembles 

 T. Disgrega very much in habit. 



Mr. Watson has^suggested a relationship with T. geniculata from which spsciea 

 it differs in having the lower surface of the leaves glabrous (at least not villous) : 

 unequal stamens, with glabrous filaments: seeds of different shape, glabrous and 

 alveolate. 



Leptorhrceo tenuifolia, n. sp. Slender annual, erect or a little spreading and root- 

 ing at the joints, glabrous or pubescent in lines: leaves linear, 1 to 1| inches 

 long, 1 to 2 lines broad, glabrous except a little pubescence at base : peduncles 

 from the axils of the leaves, mostly in clusters of 3 or 4, 9 to 12 lines long : flow- 

 ers in umbellets of 2 to 4, sometimes solitary, glabrous: sepals 1 line long: 

 petals, 1 line long, blue: stamens 6, of two lengths: capsule 3-celled, 3-8oeded. 

 — It grows in shade along water-courses at Alamos. Sept. 16 to 30. No, 744. 



This makes the second species for this genus and confirms the wisdom of sep- 

 arating it from Tradescantia, to which it is closely related and with which the 

 type species had for nearly forty years been associated. It differs from Trades- 

 cantia chiefly in having but 1 ovule in each cell, and iu the shape of the seeds 

 and the central position of thohiliim. It seems to be closely related to L.filiformis 

 of Southern Mexico, but appears quite distinct, differing especially in its more 

 erect habit, narrower and longer leaves, glabrous pedicels and calyx, and in the 

 inflorescence. 



Quercus, sp. Only sterile branches found : leaves glabrous, narrowly lanceolate, 2 

 to 3 inches long, with spiny- toothed margin. Alamos. March 26 to April 8. 

 No. 36d. 



Quercus grisea Liebm. Alamos. March 26 to April 8. Nos. 369-370. " Nos. 369 

 and 370 probably bchrag to the same species, No. 369 being a vigorous shoot." C. 

 S. Sargent. 



Quercus Kelloggii (?) Newberry. " Probably a narrow leaved form of this species ; 

 certainly there is no other described species to which it can be referred." C. S. 

 Sargent. Alamos. March 26 to April 8. No. 371. 



The above oaks were found on the summit of the Alamos mountains and have 

 neither flower nor fruit. They are mostly stunted forms 15 to 20 feet high and 

 1 to IJ feet in diameter. 



Eleocharis^ capitata K. Br. The stems are about 3 inches high, and peculiar in 

 being recurved. Alamos. March 26 to April 8. No. 411, 



Eleocharls^ palustris K. and S. var. glaucescens Gray. The achenia iu these 

 specimens are triangular, but in all other respects the characters are those of 

 this form; and triangular achenia sometimes occur in E. palustris. 



Fimbristylis diphylla* Vahl. Found in a moist place near a creek. Alamos. Sep- 

 tember 16 to 30. No. 699. 



Cyperus incompletus* Link. Grows sparsely ia wet places near Alamos. Sep- 

 tember 16 to 30. No. 701. 



* Determined by F. C. Coville. ^ Determined by N. L. Britton. 



