OF ARTS AND SCIENCES. 283 



C. Hallii, the C Chamissonis, var. tenerrima, Gray, Proc. Am. 

 Acad. viii. 378. Smaller, a span high, ascending, so far as known des- 

 titute of stolons and bulblets, apparently only annual : leaves only 2 or 

 3 pairs : pedicels in fruit ascending : fruiting calyx and capsule barely 

 a line long : seeds one or two, more muriculate. — Wet ground, Oregon, 

 E. Hall. Indian Valley in Plumas Co., California, Lemmon. 



* * * Naiocrene, Torr. & Gray. Slender stems diffuse and at 



length reclined, bearing numerous alternate very fleshy leaves, or 

 some flagelliform and less leafy, not rarely producing little fascicu- 

 late-leaved propagula in upper axils ; the decumbent base fibrous- 

 rooting, apparently perennial. 

 C. PARViFOLiA, Mo9ino. C. filtcaulis, Hook. Fl. i. 224, t. 72. 

 The leaves, although so fleshy in the living state, are flat and thin in 

 the dried specimens ; the blade of the radical and lower cauline from a 

 quarter to half an inch long, from spatulate or obovate to ovate. Petals 

 from a quarter to a third of an inch long. 



C. SARMENTOSA, BoDgard, Veg. Sitch. 137, is still an imperfectly 

 known and doubtful species. By the kind attention of Dr. Maximo- 

 wicz, some of the original material has been submitted to ray inspec- 

 tion. It would seem to be a species intermediate in certain respects 

 between C. parvifolia and G. Chamissonis, with the alternate leaves 

 of the former, and these broadly ovate, obovate, or the radical rotund, 

 the larger of the latter with blade half an inch long : they evidently 

 were fleshy, but seemingly less so than in C. parvifolia. I should still 

 take it for a foliose and flaccid form of that species, except that the 

 petals are said to be " more than half an inch long," and because C. 

 parvifolia has not been received from Sitka. The stems or branches 

 seem to terminate in a filiform stolon. 



* * * * MoNTiA STRUM. Leafy-stemmed and alternate-leaved an- 



nuals : leaves not very fleshy, 

 •f- Broad and long-petioled, not unlike those of Stellaria media, and 

 now and then lower ones opposite or nearly so : stamens 5 : seeds 

 densely lineate and transversely lineolate I 

 C. DIFFUSA, Nutt. This has now become well known, through speci- 

 mens collected by Kellogg & Harford, Suksdorf Hoioell, and Rattan. 



-f- -f- Narrow-leaved annuals, but lower nodes of stem sometimes root- 

 ing : racemiform inflorescence secund and pedicels recurved after 

 flowering : leaves with base partly scarious and clasping : stamens 

 three : seeds lenticular, thin-edged, very smooth : petals obviously 

 unequal, as in Montia, but narrowed at base and all but distinct. 



