1886.] BOTANICAL GAZETTE. 93 
ends of the nearly naked branches of the eatin more conspicuous in the male 
: fila 
plants from the shorter crowded erect stam ments =~ broader than 
the oval blunt (or rarely pati mae Reg and involute when dry, ap- 
pearing then clavate and rugose: achenia mostly narrower oat more stipi- 
tate—New Brunswick to Florida wn hacia) west to Ohio, but mostly con- 
fined to the Atlantic States. 
Glabrous or ag but not glandular. —- conspicuously downy it 
wed. Saloiiaie Nu The achenia are rarely pubescent. 
So far as I mah been able to observe, satin and non-glandular tri- 
chomes never occur on the same plant, nor have I seen any glandular specimens 
with the characteristic stamens of T. polygamum, so that the agra of glands 
appears to be characteristic of T. purpurascens, so far as these pecies a 
concerned. Where no stamens occur it is impossible to pene eta a 
with certainty unless this character can be utilized, and it must then b 
only as a positive character, since glabrous or pubescent forms occur sie both 
species. In T. purpurascens a variety can not conveniently be based on it, for 
Several other species of the genus (e.g. T. sparsiflorum) include both glabrous 
and glandular forms, not aceite by associated characters. No good reason 
exists for separating T. p ae aren into two species (revolutum and dasycar- 
pum) as has been done by Lecoyer;* nor, in the opinion of Dr. Gray, is there 
sufficient doubt as to the plant intended by Linneus to warrant the rejection of 
his name in this instance, though this is necessary in the case of T. polygamum. 
Specimens occur both in the north and south which resemble T. dioicum 
in having very thin glabrous Semi sparingly pubescent) pale leaflets valid 
and with 7 to9 round lobes at the apex, but with the fruit, as in these species, 
i.e, thin-walled, stipitate, 2-edged aa einpnewer ia not subsessile, thick-walled, 
terete and deeply and evenly grooved). It is doubtful whether these forms 
should not be sepiedel as hybrids, and cases of the simultaneous flowering of 
- dioicum and either of the late species should be noted—-WM. TRELEASE. 
The Brothers Tulasne.—It is but a few months since the bickeiihiad jour- 
on August 21, 1884, and we are now called to mourn the death of his elder 
brother, Louis René Tulasne, who died at Hyeres on December 22, 1885. In 
their lives and botanical work the two brothers were so intimately associated 
that ge have almost come to use the name Tulasne as representing a sin- 
le person. They were so modest and reticent with regard to eve that 
few Padlic of their lives could be learned even by the e older 
brother, Louis René, was born at Azay-le-Rideau, fee Baptember TZ, 
1815, and studied law at Paris. His first botanical work was in connection 
with Auguste St. Hilaire in the preparation of his flora of Brazil. In 1842 he was 
appointed aide-naturaliste at the museum of the Jardin des Plantes, ame in 
854, he was elected to the Academy as the successor of Adrien de Jussi 
About 1864 his health failed and he was obliged to retire from active service 
atthe museum. His brother Charles was born at Langeais, Indre-et-Loire, 
* Monogr. du genre Thalictrum, Gand. 1885. 
sp 
