232 PITTONIA. 



branches above, barely 5 or 6 inches high, glabrous, or nearly 

 so, all except the floral leaves opposite; spikes dense, 1 or 2 

 inches long: flowers very small, white, with yellow centre: 

 calyx segmeuts closed over the immature fruit: nutlets Hglit 

 gray and, under a lens, vitreous-shining, long-ovate, about ^ 

 Hue long, rough with numerous close transverse rugosities; 

 insertion supra-basal, the scar linear with dilated base and 

 about one-third the length of the nutlet- 

 Abundant in boggy places about the warm sulphur springs 

 at Calistoga, California; collected by the w^riter, April 20, 

 1892. Species as definitely marked in character as it is pecu- 

 liar in aspect. Perhaps quite local. 



Cryftanthe Kelseyana, Annual, stoutish, rather low, 

 the racemose branches widely spreading; the whole plant 

 very hispid: racemes rather dense, biserial: calyx about 3 

 lines long, very hispid: nutlets 4, of which three are gray, 

 narrowly ovate-acuminate, a line long, and sparsely tuber- 

 culate, the fourth much smaller, (abortive?) reddish-brown, 

 smooth, and persistent; scar of the subulate above a small 

 rounded merely supra-basal areola. 



Collected by the author, at EUiston, Montana, 6 Aug., 1889, 

 and dedicated to his esteemed friend, Kev. F. 13. Kelesey, 

 the resident botanist of that region. The species is nearest 

 C. Patlersonii, which has four equal and consimilar smooth 

 nutlets. 



Crittanthe BAIJTOLOM.EI, Aspect, pubescence and inflo- 

 rescence of C. Utuhensis, but the minute {\ line long) ovate- 

 lanceolate nutlets (4 and consimilar) perfectly smooth and 

 lucid, and without margin; the ventral groove shortly bifm'- 

 cate at the base, but closed throughout. 



Bay of San Bartolome, T. nver California, Lieut. Pond, 

 ISSa. A connecting link between the ortjgona and leloccirpn 

 groups in the genus. 



CoLLiNsiA ARVENsis. Erect, simple or with several nearly 

 erect branches from the base, 10 to 18 inches hi'-h, glabrous 



