BOTANICAL GAZETTE. 35 



Dr. Engelmann's note on Eschscholtzia Californica, in the 

 Gazette, reminds me of the broad patches of this plant growing 

 at Santa Cruz on chalky hills. I have seen a mat three feet in di- 

 ameter growing from one thick root, with plenty of remains of 

 former flowering stems still attached to the plant, showing that it 

 is a perennial as Dr. E. suggests. It is strikingly different from the 

 annual form in Southern Utah, hut I doubt its claim to distinctness 

 because of being a perennial. 



The base of the petiole of leaves of Ivesia Kingii are strik- 

 ingly hairy, but the hairs are concealed by the decaying remains of 

 the outer leaves. The pubescence is as remarkable as that of 

 Lygodesmia spinosa. — Makcus E. Jones, Salt Lake City. 



Notes from a Laboratory.— It is not unwelcome to teachers 

 who have little spare time to know j ust what plant to give to a stu- 

 dent of Vegetable Histology with the certainty that the particu- 

 lar tissue under consideration will be found in such form as to ren- 

 der it desirable for examination. With the object, therefore, of 

 recommending a few common green-house plants, in which illustra- 

 tive examples of the prominent tissues can be found, the following 

 notes, from the work of the Sophomore class of Purdue University, 

 are presented. Most of this work passed under my personal obser- 

 vation. 



Of course every one will (if he be not too forgetful) have a 

 good stock of pumpkin or squash stem to illustrate the dicotyledon- 

 ous stem, and next spring all of us, by Dr. Bessey's recommenda- 

 tion, will lay in a supply of asparagus for the monocotyledonous 

 one. Other' plants are frequently wanted however, and the follow- 

 ing to be had from almost any green house or window-garden, will 

 be found useful: 



Geranium (sp?)* exhibits an abundance of fine compound 

 crystals in a transverse section of the leaf and a few in petiole and 

 stem. Its starch grains are large and abundant (the plant was 

 just well started from a slip) and the layers of cork-cells are num- 

 erous and regular. 



Age nit urn Mexicanum (Blue Ageratum). Collenchyma well 



shown. 



Primula Sinensis (Primrose) has particularly fine trichomes. 

 The presence of chlorophyll bodies in the epidermis is also a marked 

 feature. 



Neriwm roseum (Oleander) is peculiar on account of the ar- 

 rangement of the stomata in groups at the bottom of hairy pits m 

 the under surface of the leaf. 



*The specific names, when any are given, cannot be vouched for. They are 

 as given me by our florist. All of the plants can be identified either by the 

 common or generic names. 



