BOTANY OF SANTA CRUZ ISLAND. 391 



base into many erect, leafy and at length racemose branches; 

 leaves 2 — 4 inches long, linear, those of the branches entire, 

 or with a few scattered small but salient teeth, and anauric- 

 ulate-clasping base, the lower and radical with 2 — 3 pairs 

 of linear divaricate lobes : raceme naked, the pedicels slen- 

 der and recurved : sepals minute, cymbiform, erect-spread- 

 ing in flower, white, with a broad green mid-vein : petals 

 twice the length of the sepals, spatulate-oblong, retuse: 

 stamens 6, all of the same length, three on each side of the 

 broad flat pistil: samara regularly and rather strongl}^ con- 

 cavo-convex, the crenate margin with or without some ob- 

 long perforations: style short, persistent. Species just in- 

 termediate between its very singular island congener and 

 the mainland T. crenatus; having the foliage and branching 

 habit of the former, nearly. 



24. Oligomeris subulata, Boiss. fide Brew. & Wats. Bot. 

 Cal. i. 53. — Common along the sea shore. 



25. Helianthemum scoparium, Nutt., Torr. & Gray, Fl. i. 

 152. — Common in the interior: suffrutescent, and strongly 

 so when mature; nevertheless flowering freely the first year 

 from the seed, thus often appearing as if annual. 



26. Helianthemum occidentale, Greene (see page 144). 



27. Frankenia grandifolia, Cham. & Schlecht. Linnasa, 

 i. 35. — Back of the beach, at the west end, abundant. 



28. SiLENE ANTIRRHINA, Linn. sp. i. 419. 



29. SiLENE Gallica, Linn. 1. c. 417. — Quite as common 

 as on the mainland. 



30. &ILENE QUIXQUEVULNERA, Linn. 1. c. 416? — Smaller 

 than the preceding, with a larger capsule and calyx more 

 stiffly hirsute, growing with it on hillsides ever \ where in 

 the interior of the island. The plant was long past flower- 

 ing, and may possibly be S. nocturna; but whichever species, 

 it is otherwise unknown in this part of the world, and must 



