606 
BIBLIO ORAPH Y. 
1860. Mammillaria setosa, Mesembryanthemum album , Oxalis 
floribunda, Mammillaria rliodantha, JPortulaca grandijlora, and 
Oxalis Deppei closed their flowers, more or less, during the 
eclipse. The leaves of Amorpha fruticosa, Indig of era dosua, 
Hobinia viscosa, Glycyrrhisa glabra, and 3 spp. Acacia were 
affected. Sensitive plants are also named which were not 
affected. 
Planchon, J. E.—Observations sur les Cistinees. Bull. Soc. Bot. 
ix. p. 509. 1. Nature of the parts forming the calyx. Accord¬ 
ing to some observers the two outer sepals are regarded as acces¬ 
sory bracteoles, answering to stipules; one chief ground upon 
which this view rests being the lateral position of the bract at 
the base of each pedicel. M. Planchon shew J s this to be due to 
the cymose, unilateral character of the inflorescence, and regards 
the reduced outer lobes of the calyx as true sepals. 2. Symmetry 
of calyx and corolla. 3. Hybridisation of Cistineae. The re¬ 
markable fixity of the characters of Cist us Ledon is pointed out. 
The anthers of this hybrid are stated to be habitually sterile. 
Planchon, J. E. and I. Triana.— Beponse aux critiques de M. le 
Prof. Grisebach relativement aux genres Rheedia et Mammea. 
A. S. N. ser. iv. xv. p. 236. 
-Memoire sur la Eamille des Guttiferes. A. Sc. Nat. iv. ser. 
xvi. p. 263. Chapitre ii. Devoted to the Organology and Physi¬ 
ology of the Order. Under the heads of the several organs, &c. 
are many valuable observations, especially upon the floral sym¬ 
metry and the structure of the seed. In respect to the former, 
the authors write:—“ En resume, les Guttiferes sont une de ces 
families multiformes et a tendances multiples chez lesquelles se 
rencontrent, pour se relier l’un a 1’autre, les types d’organisation 
florale qui semblent ailleurs les mieux tranches. Decussation par- 
faite avec repetition de verticilles dimeres ou trimeres ; calyce et 
corolle pentameres avec alternance suivant la regie ordinaire: 
voila les etats extremes. Passage de la decussation a la spire 
oblique, dela dimeriea la trimerie et ala pentamerie; de 1’imbrica¬ 
tion a l’estivation convolutee; traces de de doublemen t laterali- 
interne, tout cela complique d’irregularites frequentes de transposi¬ 
tions dans le rang des pieces, de variations dans leur ordre de super¬ 
position ou d’imbrication, voila la part des nuances et naturellement 
des difficultes. Ces difficultes nous les signalous sans avoir la pre¬ 
tention de les resoudre, et sans vouloir condamner absolument 
les theories auxquelles elles semblent faire breche.” The seed 
presents many remarkable features of interest, and, as we have 
already noted {vide N. H. B. 1862, p. 456), furnishes characters 
for the division of the Order into Tribes. Its details are dis¬ 
cussed at length under the respective heads of (1.) Direction of 
the seeds : relative position of the raphe. (2.) General compo¬ 
sition of the ovules and seeds. (3.) Ovular and seminal integu¬ 
ments—the aril, arillode, testa; albumen, embryo, and germination. 
(vide N. H. B. 1863, p. 373.) 
