IH BOTANICAL GAZETTE. 



Cassia ohtusifolia, L. = C. Tora, L. 



Spireea opuVfolla, L. = NeiU'a opvJifolla^ B. & H. 



Dryas intecjrifoUa, Vahl. = D. octopetala, L, var. integrijolia, Cham. & 



Schlect. 

 Poientilla paradoxa, Nutt. = P. 6'upJva^ L. 

 Dalibarda repeals, L. = Bubus DaJJbarda, L. 

 Eosa lucida, Ehrhart (Gr. Man. p. 158) should be B. lucida, Pursh, 



which is now B. parvifiora, Ehrh. 

 Bosa nitkla, Wilkl. is a distinct species. 



Cratsegus tomentosa, L., var. mollis, Gr. = C. subvillosa^ Schrad. 

 Amelanchier Canadensis, T. & G., var. alnifolia, T. & G. = A olnifolia, 



Nutt. 

 Ribc.'< hirtellum, Mx. = B. oxj/acantJtoldes, L. 

 Philadclplnis 'inodorus, L., var. grandifloriis, Gr. = P. g rand i floras, 



Willd. 

 Sidlivantia Ohionis, T. & G. == jS'. QJiioensis, T. & G. 

 Fothergilla alnifolia, L. f. = i'^ Gardeni, L. 

 Epilobiuin angiistij'olium, L. ^ 7?. apicatum. Lam. 

 Epllobium alpinum, L., var. via) us, Vahl. = i?. origanifolivrn. Lam. 

 Oenothera biennis, L., var. Oakcsiana, Gr. ^ (E. Oakesiana, Robbins. 

 (EnotJicra riparia, Nutt. = CE fruticosa^ L., var. linearis, Watson. 

 Oenothera linearis, Mx. == {K fruticosa, L., var. linearis, Watson (in 



part.) 

 Oenothera chrysantha, Mx. == (E. pumila, L. 

 Ammannia Nuttallii^ Gr. -= Didiplis linearis^ liaf. 

 Conioselinum Canadensc, T. & G. = Selinnm Conadense^ Mx. 

 Zv'^m integcrrinia, DC. = PimpineUa iniegcrrima, Benth & Hook. 

 Siurn liveare, Mx. = tS'. cicuLxfolium, Gmelin. 

 Siuin angustifolium, L. = Berula angusti folia, Koch. 



Starch in Ciiloeophyll. — It is very easy to prove the existence of 

 starch in chlorophyll. Let the green color be destroyed by immer- 

 sion in alcohol, or by any other bleaching process ; then soak the speci- 

 men a few moments in Potassium Hydrate to destroy the proto- 

 plasm. Testing with iodine the chlorophyll grains immediately as- 

 sume the characteristic blue tint of starch, especially in the guar- 

 dian cells of the stomata. Such a neat experiment, having so much 

 bearing on the question of assimilation, should be performed by every 

 botanist interested in vegetable physiology. — J. M. G. 



The Botanical Text-cook, Gth edition, Part I, Structural Botany, 

 by Asa Gray, LL. D., Ivison, Blakeman, Taylor & Co., New York 



