74 NEW PLANTS, ETC., 



3. HUGELIA LANATA.* 



An annual about nine inches high, quite white with the sliort 

 wool that covers every part, except the corolla and organs within 

 it. The leaves are linear, with a somewhat spiny point, and 

 one to three short segments on each side ; they are about two 

 inches long, and have none of the greenness of II. elongata. 

 The flowers are a clear light blue, and are placed in close heads, 

 arranged in a corymbose manner. Beyond their throat project 

 five long linear arrow-headed white anthers. 



It is not a striking plant, but may be found useful as a novelty 

 among hardy annuals. 



Aug. 30, 1847. 



4. Arthrostemma fragile. f 



Raised from seeds gathered by Mr. Hartweg in the west of 

 Mexico, and received in January, 1846. 



A liglit green brittle-stemmed shrub, about three feet high, 

 and covered slightly with fine glandular scattered hairs. Leaves 

 stalked, about two inches long, ovate, very slightly cordate, five- 

 nerved, acute, and finely serrated. Flowers an inch and a half 

 across, in loose few-flowered terminal cymes. Petals oblong, 

 .slightly mucronate, deep rosy purple. Anthers nearly equal in 

 size, furnished at the base with a short incurved bifid spur. Apex 

 of the ovary free, slightly hispid ; its interior is two-celled, with 

 two spurious additional dissepiments, which make it four-celled. 



Mr. Bentham, in a letter to the Editor, remarks that this species 

 " is not among Mr. Ilartweg's dried plants. As to the genus, it 

 is very near De Candolle's section MonoclicEtum of Arthros- 

 temma ; but the appendages of the anthers are all bifid at the 

 extremity, and the ovary has but two cells instead of four. It 

 diflTers from Ileteronoma by the anthers of both series being fer- 

 tile and nearly equal and similar, as well as by the nervation of 



* H. lanata ; undique dense albolanata, foliis parce pinnatifidis linearibus 

 subpungentibus laciniis brevibus nunc fere obsoletis, capitulis breviter pedun- 

 culatis subcorymbosis, bracteis paucis brevibus linearibus recurvis subpungen- 

 tibus, calyce lanuginoso cyhndraceo laciniis brevibus erectis integerrimis in- 

 sequalibus tubo corollaj multo brevioribus, staminibus exsertis antberis alte 

 sagittatis, ovulis 6-8. — J. L. 



f A. fragile (Monochaitum) ; ramulis tetragon is distanter glan- 

 duloso-pilosis, foliis ovato-cordatis acutis quinque-ntrviis argute serratis, 

 cymis laxis terminalibus distanter paucifloris, calycis tubo obovato-oblongo 

 glanduloso, petalis oblongis concavis mucronulatis, antherarum calcare bifido. 

 —J. L. 



