56 



than is supposed but is mistaken for C. Lutetiana, which it so 

 closely resembles. — F. H. Burglehaus. 



The Mignonette as Class Illustration for Ascent of Sap. 

 — The garden mignonette when in flower is a suitable plant with 

 which to test the upward flow of liquid in cut stems, and by means 

 of it, when the inflorescence is many inches long, the rate of as- 

 cent may, in some measure, be obtained without destroying the 

 stem. This is because the petals are delicately fringed with 

 white, and into these the liquid will pass and quickly show a 

 beautiful color, whether blue, red, or other that may be used. 

 The fine somewhat spatulate lobes of the corolla will first show 

 the color in the main vein, but shortly after it will increase and 

 become diffused throughout all the middle of the lobe, the outer- 

 most and purely cellular portion being the last to be tinged. 

 Methyl-blue has proved the most striking color for class illustra- 

 tion. — Bvron D. Halsted. 



A Rare Plant from western Texas. — Last summer, when 

 collecting in western Texas, I found a parasite on Dalea for- 

 mosa, which I took first, after a careless examination, for a 

 Cuscuta. But in the winter, when I studied my plants from 

 western Texas more carefully, I found that it was a very 

 different plant and ivas more related to the Loranthaceae than 

 to anything else. Lately I purchased the Plantae Novae Thur- 

 berianae and here I found my plant described by Dr. Asa 

 Gray as Pilostylcs Thurberi (now Apcdantlics Tlmrberi B. & 

 H. ). This plant is the only representative of the Raffiesiaceae 

 in the LTnited States. It was first collected by Mr. Thurber on 

 Dalea Enwryi, along the Gila River, in western Arizona. — Henry 

 Eggert. 



REVIEW'S 



The Genus Lycopodium : A Criticism 

 By Francis E. Lloyd 



The part of Engler and Prantl's Die natiirlichen Pflanzen- 



familien dealing with the Lycopodiaceae * has lately appeared, and 



* E. Pritzel. Lycopodiaceae. Engler & Prantl, Die natiirlichen Pflanzen- 

 familien I* : 563-606. 1900. 



