13 
d) R. Culverwellii, Macfarlane, 1900. — (nigrum © X gros- 
sularia Z) et (grossularia © X nigrum SS). — R. Schneideri 
Maurer. — Ex horto Späth. — Frutex baccas paucas profert; se- 
mina earum sterilia. 
Exemplum primum hybridationis inter subgen. Coreosmam et 
Grossulariam. 
e) R. fontenayense, Janezewski, 1905. — (glutinosum ? X gros- 
sularia var. uva crispa). — Frutex inermis, metralis et ultra: ra- 
mulis rigidis, divergentibus, in juventute pubescentibus; foliis me- 
diocribus, 3—5-lobis, basi truncatis v. subcordatis, subtus pubescen- 
tibus; racemis brevibus (1—3 cm), paucifloris (3—6), pendulis, 
bracteis subelliptieis, conspicuis; floribus sordide roseis, pubescenti- 
bus, sessilibus, receptaculo intus pubescenti, latiore quam longo, se- 
palis explanatis, obtusis, petalis brevioribus, spatulatis, erectis, initio 
albidis, postea roseis, staminibus petala superantibus, antheris sub- 
ellipticis, polline pauca (5°/,) granula normalia continenti. stylo 
pubescenti, antheras superanti, apice bifido, ovario pyriformi. brevi- 
ter pedunculato. pubescenti; baceis raris, ellipsoideis, subpedunculatis, 
atropurpureis, subpruinosis, oligospermis, mense Septembri mature- 
scentibus. — E fruticetis: Vilmorin et Späth. 
Exemplum alterum hybridationis inter subgen. Coreosmam et 
Grossulariam, parentibus intermedium, ut praecedens inerme. 
2. MM. J. BURACZEWSKI et L. MARCHLEWSKI m. t. Studya nad barwi- 
kiem krwi V. (Studies on the blood colouring matter. V. preli- 
minary note). (Recherches sur la matière colorante du sang). Mémeire 
présenté à la séance du 4 Decembre 1905. 
In the third!) preliminary communication on the chemistry of 
the blood eolouring matter we have described experiments which 
lead to the discovery of the fact that the imide of methyl-propyl- 
maleic acid may be converted by reduction into a substance which 
had many properties in common with haemopyrroline; it gave for 
instance by spontaneous oxidation a colouring matter very similar 
to urobiline. Nevertheless we were not prepared to identify that 
substance with haemopyrroline, eonsidering that the optical proper- 
!) This Bull. p. 397. 1904. 
