Crataegus ser. Tenuifoliae

Series Tenuifoliae is a series within the genus Crataegus that contains at least seven species of hawthorn trees and shrubs, native to Eastern North America, with one disjunct species (C. wootoniana) in the mountains of New Mexico.[2]

Crataegus ser. Tenuifoliae
Crataegus macrosperma
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Section: Crataegus sect. Coccineae
Series: Crataegus ser. Tenuifoliae
(Beadle ex Sarg.) Rehder[1]

Species

The principal species in the series are:[2]

The following rare local species appear to be hybrid derivatives of series Tenuifoliae:[2]

  • Crataegus × fretalis
  • Crataegus × lucorum
gollark: This was before floating pointers, sadly.
gollark: ```c#include <stdint.h>#include <stddef.h>static uintptr_t MEMPOS = 1;void* malloc(size_t size) { uintptr_t bees = MEMPOS; MEMPOS += size; return (void*)bees;}void free(void* ptr) { *(char**)ptr = "hello please do not use this address";}```
gollark: I'm sure I'll find it eventually.
gollark: It's classified.
gollark: I already wrote malloc and came up with the floating pointers idea.

References
  1. Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. 2003. Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
  2. Phipps, J.B. (2015), "Crataegus Linnaeus (sect. Coccineae) ser Tenuifoliae (Sargent) Rehder, Man. Cult. Trees ed. 2 362. 1940", in L. Brouillet; K. Gandhi; C.L. Howard; H. Jeude; R.W. Kiger; J.B. Phipps; A.C. Pryor; H.H. Schmidt; J.L. Strother; J.L. Zarucchi (eds.), Flora of North America North of Mexico, Volume 9: Magnoliophyta: Picramniaceae to Rosaceae, New York, Oxford: Oxford University Press, pp. 561–567


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