'208 BOTANY OF THE DEATH VALLEY EXPEDITION. 



Juncus phaeocephalus paniculatus Engelm. Trans. St. Louis Acad. ii. 484 

 (1868). Type locality, "in the lowlands, Napa Valley, San Francisco, and in the 

 mountains." 



In Owens River Valley (Nos. 901, 1774). 



Juncus rugulosus Engelm. Bot. Gaz. vi. 224 (1881). Typo locality, "in a run- 

 ning streamlet at the [south] foot of the San Bernardino Mountains," California. 



Dr. Franz Buchenau, in his recent Monograph of the Juncaceas, ' refers this curious 

 Bpecics to J. dubius, as a form with wrinkled epidermis, citing as analogous cases among 

 other species of Juncus the identity of J. ritdis with ./. microcephalia, and J. rugosus 

 with J. acutijhrus. After an examination of several specimens of both plants I am 

 able to find hut one character, in addition to the wrinkled epidermis, which may 

 serve to distinguish them, namely, the size of the anthers. In J. dubius they are 

 large, two to four times the length of the filaments, while in J. rugulosus they are 

 much smaller, rarely equaling the filaments, usually only one-half or one-third as long. 

 Fully matured seeds of J. dubius I have not scon. For the present it is not desirable 

 to unite the plants under the name J. dubius, and further observations on their in- 

 tergradation and their ran go are needed; yet it will probably be found that they 

 are not specifically distinct. 



Collected near San Bernardino (No. 14), and near Castac Lake (No. 1148). 



Juncus subtriflorus (Mey.) Linna^a, iii. (1828), as J, compressus subtriflorus. 

 Type locality, "Unalaschka." This is an older name for J. drummondii Mey. in 

 Ledeb. Fl. Ross. iv. 235 (1853). 



Near timber-line in the Sierra Nevada (Nos. 1540, 1563, 2080). The plants of No. 

 1563 are very large, reaching 50 cm. in height. They grew on a shaded, moist 

 slope among some granite boulders. The specimens of No. 2080 are not more than 

 10 cm. high, and in some cases the sheaths have produced blades 4 cm. long. They 

 answer to Eugelmann's J. drummondii humilis. 



Juncus xiphioides Mey. Syn. June. 50 (1822). Type locality, "in NovaHispauia 

 prope Real del Monte," an error for Monterey, California. 



Nos. 710 and 969 are robust plants with thick stems 0.7 to 1.4 meters high, in- 

 clined to bo procumbent at the base and the inflorescence in less open panicles. 

 They grew in turf on the banks of mountain rivulets. Nos. 1253 and 1734 are 

 plants of about the same height but more slender and quite erect. Their panicles 

 are large and loose, being in one specimen of No. 1734 30 cm. long and bearing 184 

 glomerulus. No. 1253 grow in the rich mud of a partially dried roadside ditch, No. 

 1734 in the shallow margin of a lake. 



The plant was seen in Surprise (No. 710), Willow Creek, Mill Creek, and Cotton- 

 wood (No. 969) canons, Panamint Mountains; at a spring on the east slope of Walker 

 Pass; in the Canada de las Uvas; near Visalia (No. 1253); and at the smaller of the 

 lakes on Kern River (No. 1734). 



Juncus xiphioides montanus Engelm. Trans. St. Louis Acad. ii. 481 (1868). 

 Type locality of the smaller-headed form, "Arizona, N. Mexico, and west Texas." 

 In the valley of the Kaweah River (No. 1327). 



Juncoides campestre (L.) Sp. PI. i. 329 (1753), under Juncus; Kimtze, Rev. 

 Gen. PI. ii. 722 (1891). Type locality European. 



Valley of the Kaweah River (No. 1353). This is the Luzula campestris of De Can- 

 dolle. 



Juncoides campestre sudeticum (Willd.) Sp. PI. ii, 221 (1799), as Juncus 

 sudclicus. Type locality, "in sudetis Silesiie sumutis humidis." 



At timber-line in the Sierra Nevada, near Mineral King (No. 1553). This alpine 

 Juncoides, although widely distributed in the alpine regions of the Old World, seems . 

 to be extremely rare on this continent. I have seen American specimens heretofore 



lEngler, Bot. Jahrb. xii. 351 (1890). 



