252 [2383-2395] 
Delpino, Federico. Altri apparecchi dico- 
gamici recentemente osservati. (Nuovo 
giorn. bot. ital., 1870, v. 2, p. 51-64.) 
Shows the adaptation of a number of flowers to cross- 
fertilization by insects. W: T. (2383) 
Delpino, Federico. Breve cenno sulle rela- 
zioni biologiche e genealogiche delle ma- 
rantacee. (Nuovo giorn. bot. ital., Oct. 
1869, Vv. I, p- 293-306. ) 
Includes studies on the adaptation of species to fer- 
tilization by insects. W: T. (2384) 
Delpino, Federico. Contribuzionialla storia 
dello sviluppo del regno vegetale. 1. Smi- 
lacee. (Atti della R. universita di Ge- 
nova, 1880, v. 4, pt. 1, p- I-gI.) 
In discussing the biological relations of the sm7/aceae, 
the author gives a full account of extrafloral nectar and 
its protective value in different groups of plants (p. 25- 
33), Showing that the greater number of plants pro- 
ducing it are climbers. This association is not believed 
to be fortuitous, but due to the fact that the frequent 
contact of climbing plants with their supports brings 
them in the way of ants to a large degree, and thus 
renders any mutually beneficial adaptations between the 
two easy of realization. W: T. (2385) 
Delpino, Federico. Dicogamia ed omogamia 
nelle piante. (Nuovo giorn. bot. ital., Apr. 
1876, v. 8, p. 140-161.) 
Discusses cross and self-fertilization, indicating 
many adaptations for securing the latter by insects and 
in other ways. W: T. (2386) 
Delpino, Federico. Difesa della dottrina 
dicogamica. (Nuovo giorn. bot. ital., July 
1878, v. 10, p. 177-215.) 
Caruel having attacked the laws of cross-fertiliza- 
tion in flowering plants, as established by the researches 
of Darwin, Hildebrand, Miiller, and others, the writer 
ives many details supporting the Darwinian belief, 
iscussing it in its morphological, physiological and 
taxonomical bearings. W: T. (2387) 
Delpino, Federico. Rapporti tra insetti e tra 
nettariil estranuziali in alcune piante. Es- 
tratto dal Bullettino entomologico, anno 6. 
Firenze, Murate, 1874. 22 p., 22X15, t 17 
X 10.5. 
Describes the extrafloral nectar glands in some 
twenty or more genera of plants, and their use to the 
plant by maintaining a body guard of insects (ants and 
wasps) which protect the plant from various enemies. 
The author quotes from Ratzeburg and others, to show 
the influence these insects may have. W: T. (2388) 
Delpino, Federico. Rivista botanica dell’ 
anno 1879. [Estratto dall’ Annuario scien- 
tifico italiano. Anno 16: 1879.] Milano, 
Fratelli Treves, 1880. 163 p., 19X13, t 16 
XQ. 
_ Part 3, Biologia vegetale (p. 30-94). Contains re- 
views, with such comments as are suggested by the 
writer’s own studies, of 2 papers on insectivorous plants, 
and of 15 papers on the fertilization of flowers. 
W: T. (2389) 
PSYCHE. 
Delpino, Federico. Rivista botanica dell’ 
anno 1880. [Estratto dall’ Annuario sci- 
entificoitaliano. Anno 17: 1880.] Milano, 
Fratelli Treves, 1881. 100 p., 19X13, t 16 
X 9. 
Part 3, Biologia vegetale (p. 21-52). Contains re- 
views of It papers on the relations between plants 
and animals, and the fertilization of flowers, to which 
are added original observations by the reviewer. 
W: T. (2399) 
Delpino, Federico. Ulteriori osservazioni 
sulla dicogamia nel regno vegetale. Parte 
1a. [Dagli Atti soc. ital. sci. nat. (Mil- 
ano), Oct. 1868, v. 11, p. 265-332; Aug. 
1869, Vv. I2, p. 21-141, p. 179-233. Seduta 
del 28 giugno, 1868.] Milano, Giuseppe 
Bernardoni, 1868-1869, 243 p-, 22X16, t 
16 X 10. 
Reprint of p. 189-223, entitled ‘* Rivista 
monographica della famiglia delle marc- 
graviaceae.” (Nuovo giorn. bot. ital., 
Oct. 1869, v. I, p. 257-290. ) 
Dichogamy with this author and Italian writers in 
general is synonymous with cross-fertilization, and 
not with lack of synchronism in the maturity of the 
genitalia of flowers, as with Sprengel and most German 
and English writers. In the present paper the various 
means of securing crossing, largely by aid of insects, 
are discussed, the adaptations of many flowers being 
described. W: T. (2391) 
Earley, W: Hive bees vs. mechanism. 
(Nature, 25 July 1872, v..6, p. 242, 17 cm.) 
The writer finds the weight of hive bees [apis mel/i- 
fica} insufficient to depress the wings and keel of tha 
sweet pea [Zathyrus] which they visit for nectar: hence 
these bees do not fertilize the flowers. To obtain pollen 
from these flowers the bees crowd the petals in question 
down enough to expose the anthers. W: T. (2392) 
Engelmann, G: The flower of yacca and 
its fertilization. (Bull. Torrey bot. club, 
Jaly 1872, v. 3, -p.33,'S cua) 
Correction, by G: Engelmann, entitled 
‘Note from Dr. Engelmann.” (Bull. Tor- 
rey bot. club, Aug. 1872, v. 3, p- 37, 13 cm.) 
Describes the arrangement for fertilization, and 
states that this is effected by ‘“‘a white moth of the genus 
tortrix.’ W: T. (2393) 
Engelmann, G: Note from Dr. Engelmann. 
(Bull. Torrey bot. club, Aug. 1872, v. 3, 
De siecle el. ) 
Correction of the author’s “The flower of yucca...” 
[Rec., 2393]. States that the insect which fertilizes 
yucca is “allied to tortrix.” W: T. (2304) 
Ernst, A. Fertilization of coboea penduli- 
frora. (Nature, 17 June 1880, v. 22, p. 148- 
149-) 
Shows how the flowers are pollinated by nocturnal 
moths. W: T. (2395) 
