Hudsonia 



ClSTACEAE 



679 



50 



Map 1424 

 Helianthemum B i c k n e 1 1 1 1 Fprn 



5247 HUDSONIA L. 



1. Hudsonia tomentosa Nutt. var. intermedia Peck. Woolly Hudsonia. 

 Map 1425. In the open in almost pure sand and restricted to the dune 

 area of Lake and Porter Counties. 



N. B. to Man., southw. to N. C, the Great Lakes, and N. Dak. 



5248. LECHEA [Kalm] L. Pinweed 

 [Hodgdon, A. R. A taxonomic study of Lechea. Rhodora 40: 29-69, 87- 

 131. 1938.] 



All of my specimens were named by A. R. Hodgdon. 



Pubescence of stems spreading 1. L. villosa. 



Pubescence of stems appressed. 



Calyx with the outer (narrow) sepals longer than the inner ones. 



Blades of both cauline and basal leaves of an oval or elliptic type 2. L. minor. 



Blades of both cauline and basal leaves of a linear or subulate type 



3. L. tenuifolia. 



Calyx with the outer (narrow) sepals shorter than the inner ones. 



Inner sepals 1-nerved; capsules longer than the sepals; basal leaves oval 



4. L. racemulosa. 



Inner sepals 3-nerved; capsules not conspicuously longer than the sepals. 

 Plants canescent. 



Panicle strict, fastigiate, nerves of inner sepals faint on both surfaces; basal 

 leaves linear-oblong, sparsely pubescent beneath on midrib and margin; 



pedicels mostly 2-3 mm long 5. L. striata. 



Panicle with primary branches spreading, nerves of inner sepals plainly 

 visible on both surfaces; basal leaves oblong or ovate-oblong, entire 

 under surface of blades pubescent; pedicels mostly 1-2 mm long. (See 



excluded species no. 450, p. 1074.) L. maritima. 



Plants green or reddish green, strongly pubescent but not canescent. 



Branches of panicle nearly erect or slightly spreading, usually up to 30 de- 

 grees and rarely spreading as widely as 45 degrees; capsules globose or 

 depressed-globose, about 2 mm in diameter. (See excluded species no. 



449, p. 1074.) L. intermedia. 



Branches of panicle usually spreading, generally to about 45 degrees; capsules 



short-elliptic to obovoid, about 1-1.5 mm in diameter 



6. L. Leggettii var. moniliformis. 



