Ps PCIE . 
Darwin. C: Observations sur l’hétéromor- 
phisme des fleurs, et ses conséquences pour 
la fécondation. (Annales des sci. nat., Bot., 
1863, ser. 4, V. 19, p. 204-255, pl. 12.) 
Fr. tr. of C: Darwin’s “On the two forms or dimor- 
phic condition in the species ot primu/a” ... (Journ. 
Linn. soc., Bot., 21 Nov. 1861, v. 6, p. 77-96) |Rec., 2373], 
“On the three remarkable sexual forms of catasetum 
tridentatum...” (op. cit., 3 Apr. 1852, v. 6, p. 151-157) 
Rec., 2375], and ‘On the existence of two forms... 
in several species of the genus //num” (op. cit., 5 Feb. 
1853, v. 7, p. 69-83) [Rec., 2371]. VT (as72) 
Darwin, C: On the three remarkable sex- 
ual forms of cafasetum tridentatum, an 
orchid in the possession of the Linnaean 
society. (Journ. Linn. soc., Bot., 3 Apr. 
DSG2,) #V2 0,» -L51-157-) 
Fr. tr. (Annales des sci. nat., Bot., 1863, 
ser. 4, Vv. 19, p. 247-255, pl. 12, figs. A, 
Tey UC) ’ 
Shows that the plants formerly known as catasetum 
tridentatum, monachanthus virtdis and myanthus bar- 
batus-are respectively the male, female and hermaphro- 
dite forms of a single species. The mode of pollina- 
tion by insect agency is indicated. Ws i2s (23475) 
Darwin, C: On the sexual relations of the 
three forms of dythrum salicaria. (Journ. 
Linn. soc., Bot., 16 June 1864, v. 8, p. 169- 
196. ) 
The trimorphic flowers of this /ythrum are_cross- 
fertilized by hive and humble bees hopes mellifica and 
bombus], and by diptera. W: T. (2376) 
Darwin, C: On the specific differences 
between primula veris, Brit. Fl. (var. off- 
cinalis, Linn.), p. vulgarts, Brit. Fl. (var. 
acaulis, Linn.), and . elatéor, Jacq.; and 
on the hydrid nature of the common oxlip. 
With supplementary remarks on naturally 
produced hybrids in the genus verbascum. 
(Journ. Linn. soc., Bot., 19 Mar. 1868, v. 
10, Pp. 437-454-) 
Shows among other things how bees or other insects 
may hybridize and deteriorate species of plants. Notes 
some of the insect visitors of the flowers studied. 
W: TF. (23477 
Darwin, C: On the various contrivances 
by which British and foreign orchids are 
fertilized by insects, and on the good effects 
of intercrossing. With illustrations. Lond., 
J: Murray, 1862. 365 p., 18X12, t 13.5X 
7-53 34 figs. 
“Germ. tr., by H. G. Bronn, entitled 
‘Ueber die Einrichtungen zur Befruchtung 
britischer und auslaindischer Orchideen 
durch Insecten, und uber die giinstigen 
Erfolge der Wechselbefruchtung.’ Stutt- 
gart, 1862.” 
Rev., by A. Gray, entitled ‘‘ Fertilization 
of orchids through the agency of insects.” 
(Amer. journ. sci. and arts, 1862, v. 84, s. 
2, V. 34: July, p. 138-144; Nov., p. 420-429.) 
[2374-2382 | 251 
Rey., by E. F[ournier?], under full Eng- 
lish title. (Bull. soc. bot. de France, Aug. 
1862, Vv. 9, p- 243-246.) 
2d ed., entitled ‘* The various contrivan- 
ces by which orchids are fertilized by in- 
sects. 2d ed., rev., with il.” N.Y., D. 
Appleton & Co., 1877. 300 p., 20X12, 
t 15X8.5. 
An exhaustive study into the relations between or- 
chids and insects. W: T. (2378) 
Darwin, C: The various contrivances by 
which orchids are fertilized by insects. 2d 
ed., rev., withil. N.Y., D. Appleton & 
CO, IS77.~4300 Ps, 20K 02, & 5X 6.5. 
‘‘Germ. tr., by V. Carus, entitled ‘Die 
verschiedenen Einrichtungen, durch welche 
Orchideen von Insecten befruchtet werden. 
Aus dem Englischen. 2. durchgesehene 
Auflage. Mit 38 Holzschnitten.’  Stutt- 
gart, E. Koch, 1877. 259 p.” 
SHrvteby wd. bHeckells 
Rev., by A. W. Bennett, entitled ‘ Re- 
markable plants. 2. Some curious orchids.” 
(Nature, 22 Feb. 1877, v. 15, p- 357-359-) 
Rev., by Hermann Miiller, under Eng- 
lish title. (Bot. Jahresbericht ... Just, 
1877, V- 5, P- 741-742.) 
This work is in general the same as the rst ed., ‘On 
the various contrivances by which British and foreign 
orchids are fertilized’... [Rec., 2378], but is brought 
up to date, and includes a list of papers bearing on the 
fertilization of orchids which appeared between 1862 and 
1876, inclusive. W: T. (2379) 
Darwin, C: ‘‘Die verschiedenen Einrich- 
tungen, durch welche Orchideen von In- 
secten befruchtet werden. Aus dem En- 
glischen von V. Carus. 2. durchgesehene 
Auflage. Mit 38 Holzschnitten. Stutt- 
gart, E: Koch. 1877. 259 p-” 
Germ. tr., by Victor Carus, of Darwin’s ‘‘The various 
contrivances by which orchids are fertilized by insects. 
2d ed.” ... [Rec., 2379] W: T. (2380) 
Darwin, C: ‘‘Die Wirkungen der Kreuz- 
und Selbst-befruchtung im Pflanzenreich. 
Aus dem Englischen von V. Carus. Stutt- 
Bonwit och. 1077." 
Notice, under full title. 
1877, V- I, Pp» 457, 9 cm.) 
Germ. tr., by Victor Carus, of Darwin’s ‘‘ The effects 
of cross and self fertilization in the vegetable kingdom”’ 
[Rec., 2369]. W: T. (2381) 
(Kosmos, Aug. 
Delpino, Federico. Sugli apparecchi della 
fecondazione nelle piante antocarpee, fane- 
rogame. Summario di osservazioni fatte 
negli anni 1865-66. Firenze, 1867. 39 p.. 
22X13, t 17.5X 10. 
Discusses the pollination of flowers of many orders, 
and the part which insects take in it. W: T. (2382) 
