536 LINACEAE 



Dry plains and hills: Colo. N.M. Ariz. Utah; n Mex. Son. Svbmont. 

 Ap-Au. 



5. C. compactum (A. Nels.) Small. Dull-green perennial; stem 1-2 dm. 

 high, branched at the base; leaves numerous towards the base, but early decidu- 

 uous, the upper more persistent, erect or ascending, entire; sepals lanceolate, 

 becoming 6-8 mm. long, acuminate, evenly glandular-toothed, the inner much 

 shorter than the outer; petals yellow, 7-9 mm. long; capsule ovoid, 4 mm. long. 

 L. compactum A. Nels. Dry plains: N.D. Mo. Wyo. Mont. Plain Svb- 

 mont. Je-Au. 



6. C. rigidum (Pursh) Small. Glabrous, bright green perennial; stem 1-5 

 dm. high, simple at the base, corymbosely branched above, prominently striate- 

 angled; leaves relatively few, erect, early deciduous, linear to linear-lanceolate, 

 0.6-3 cm. long, acute or acuminate, the upper ones glandular-ciliate or glandular- 

 serrulate; sepals lanceolate, becoming 6-8 mm. long, acuminate, evenly glandu- 

 lar-toothed, the inner ones shorter and broader than the outer ones; petals 

 yellow; capsule ovoid, 4-5 mm. long. L. rigidum Pursh. Plains and hills: 

 Man. Tex. Colo. Alta. Plain Submont. Je-O. 



7. C. Berlandieri (Hook.) Small. Bright green glaucescent perennial; stem 

 0.5-3.5 dm. high, simple at the base, branched and angled above; leaves rather 

 few, spreading or ascending, linear to linear-lanceolate, mostly 1.5-4 cm. long, 

 acuminate, entire, the lateral veins marginal; sepals lanceolate, becoming 9-11 

 mm. long, evenly glandular-toothed, acuminate and minutely spinulose-tipped, 

 the inner ones shorter; petals light yellow, 17-20 mm. long; capsule ovoid, 4-4.5 

 mm. long. L. Berlandieri Hook. L. arkansanum Osterhout. Sandy soil: Neb. 



-Tex. Colo. Plain Son. Ap-Jl. 



8. C. aristatum (Engelm.) Small. Glaucescent perennial; stem 2-4 dm. 

 high, corymbosely branched above, striate or somewhat angled, glabrous; cymes 

 few-flowered; leaves few, erect, thickish, the lower linear or narrowly linear- 

 spatulate, about 1 cm. long, the upper subulate, slender, with involute margins, 

 entire; sepals linear-lanceolate, becoming 9-10 mm. long, arista tely tipped, the 

 inner shorter than the outer, more finely toothed; petals yellow, 13-15 mm. long; 

 capsule about 3 mm. long, ovoid. L. aristatum Engelm. Sandy soil: w Tex. 



se Utah n Mex. Son. Jl-Au. 



9. C. subteres (Trelease) Small. Glaucous perennial; stem 2-3 dm. high, 

 branched at the base, terete or nearly so; leaves crowded at the base and on the 

 main blanches, erect, thick, succulent, the lower linear-spatulate, the upper 

 linear or subulate, 1-1.5 cm. long; sepals lanceolate, becoming 6-7 mm. long, 

 abruptly pointed, the inner shorter, with several teeth; petals yellow, 10-13 mm. 

 long; capsule ovoid, 4 mm. long. L. aristatum subteres Trelease. Sandy places: 

 Nev. Utah. Son. Submont. My-Au. 



FAMILY 69. BALSAMINACEAE. JEWEL-WEED FAMILY. 



Herbs, with more or less succulent leaves and swollen nodes. Flowers 

 perfect, irregular, zygomorphic. Sepals 3, rarely 5, the posterior one petal- 

 oid, strongly saccate or spurred at the base. Petals 5, or by union of two 

 and two only 3. Stamens 5, alternate with the petals; anthers more or less 

 united around the stigma. Gynoecium of 5 united carpels; styles obsolete. 

 Pod a 5-celled capsule, elastically dehiscent. 



1. IMPATIENS L. TOUCH-ME-NOT, JEWEL-WEED. 



All our species annual. Sepals in ours 3. Lateral petals each united with 

 the adjacent posterior one. Capsule elastically dehiscent. Seeds usually 

 many, pendulous above each other in a single row. 



Spur present. 



Spur porrecfc, i. e., bent at a right angle to the sack, one-fourth as long as the same or 

 less; sack as broad as long, pale yellow, unspotted or minutely so. 



1. I. pallida. 



