Banksia ser. Abietinae

Banksia ser. Abietinae
B. pulchella (Teasel Banksia), a species in B. ser. Abietinae.
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
Order:	Proteales
Family:	Proteaceae
Genus:	Banksia
Series:	B. ser. Abietinae Meisn.

Banksia ser. Abietinae is a valid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.

B. ser. Abietinae was first published in 1856, in Carl Meissner's chapter on the Proteaceae in A. P. de Candolle's Prodromus systematis naturalis regni vegetabilis. It was one of four series into which the subgenus Eubanksia was divided. These four series were defined in terms of leaf characters, with series Abietinae containing the species with entire or shortly denticulate leaves with revolute margins. In hindsight, it was the most homogeneous of the four series, as it contained only (but not all) species with hooked styles. The other three series were highly heterogeneous in comparison. The placement and circumscription of B. ser. Abietinae in Meissner's arrangement may be summarised as follows:

Meissner's arrangement was current until 1870, when George Bentham published his arrangement, discarding all four of Meissner's series.

In 1981, Alex George published a thorough revision of Banksia in his classic monograph The genus Banksia L.f. (Proteaceae). He reinstated B. ser. Abietinae, placing it within B. sect. Oncostylis, and defining it as containing only those species with entire, linear leaves with revolute margins, and having roughly spherical inflorescences. Thus three species with elongate cylindrical inflorescences were moved into separate series.

...
Wikipedia