Question: In between Photinia and Chamaerops which one is in the family Arecaceae?

Context paragraphs:
Corypha: Corypha (Gebang Palm, Buri Palm and Talipot Palm) is a genus of palms (family Arecaceae), native to India, Malaysia, Indonesia, the Philippines, New Guinea, northeastern Australia (Cape York Peninsula, Queensland).  They are fan palms (Arecaceae tribe Corypheae), with the leaves with a long petiole terminating in a rounded fan of numerous leaflets.

Metroxylon vitiense: Metroxylon vitiense ("vitiense" - originating in Fiji, also known as the Fiji sago palm) is a species of flowering plant in the family Arecaceae, endemic to the islands of Fiji (hence its specific name "vitiense", "of Viti", meaning Fiji in Fijian), Ovalau, and Vanua Levu in Fiji.  There is only one confirmed occurrence of "M. vitiense" on Vanua Levu, just outside Savusavu.  Despite it being considered a threatened species by the IUCN, as of February 2013 "M. vitiense" was still unprotected by Fijian regulations and international legislation.  It has also been reported from the nearby islands of Wallis and Futuna.

Climbing palm: Climbing palms are genera in the family Arecaceae that grow as lianas. "Initially erect, the slender stems seek out trees for support and climb up into the forest canopy by means of recurved hooks and spines growing on the stem, leaves and inflorescences.  In all climbing palms the leaves are pinnate and grow along the stem instead of forming a dense crown.  The stems of climbing palms, more often referred to as canes, are solid in contrast to bamboo poles which are almost always hollow."  "The majority of climbing palms are also clumping palms <nowiki>[and sympodial]</nowiki>, sending out new shoots from <nowiki>[below ground as suckers]</nowiki>."  "About 600 species of palms in <nowiki>[16]</nowiki> genera have a climbing growth habit.  Most noteworthy is the genus "Calamus"--the largest genus in the palm family with approximately 350 described species--source of nearly all commercial rattan."

Jubaea: Jubaea is a genus of palms (family Arecaceae) with one species, Jubaea chilensis, or "J. spectabilis", the Chilean wine palm or Chile cocopalm.  It is native to southwestern South America, where it is endemic to a small area of central Chile, between 32°S and 35°S in southern Coquimbo, Valparaíso, Santiago, O'Higgins and northern Maule regions.  It was long assumed that the extinct palm tree of Easter Island belonged to this genus too, but it is distinct and now placed in its own genus, "Paschalococos".

Iriartea: Iriartea is a genus in the palm family Arecaceae, native to Central and South America.  The best-known species – and probably the only one – is Iriartea deltoidea, which is found from Nicaragua south into Bolivia and a great portion of Western Amazonian basin.  It is the most common tree in many forests in which it occurs.  It is known by such names as bombona (which can also refer to other palms, e.g. "Attalea regia") or cacho de vaca (which can refer to many other plants, like the Bignoniaceae "Godmania aesculifolia" or the orchid "Myrmecophila humboldtii").  In the Murui Huitoto language of southwestern Colombia, it is called "jɨagɨna" or "jɨaìgɨna", in western Ecuador it is known as pambil and in Peru it is known as the pona palm.

List of Arecaceae genera: This is a list of all the genera in the botanical family Arecaceae, the palm tree family, arranged by tribes within the family.

Chamaerops: Chamaerops is a genus of flowering plants in the palm family Arecaceae.  The only currently fully accepted species is Chamaerops humilis, variously called European fan palm, or the Mediterranean dwarf palm.  It is one of the most cold-hardy palms used in landscaping in temperate climates.

Coconut: The coconut tree ("Cocos nucifera") is a member of the family Arecaceae (palm family) and the only species of the genus "Cocos".  The term coconut can refer to the whole coconut palm or the seed, or the fruit, which, botanically, is a drupe, not a nut.  The spelling cocoanut is an archaic form of the word.  The term is derived from the 16th-century Portuguese and Spanish word "coco" meaning "head" or "skull", from the three indentations on the coconut shell that resemble facial features.

Ravenala: Ravenala is a genus of flowering plants with a single species, Ravenala madagascariensis, commonly known as traveller's tree or traveller's palm, from Madagascar.  It is not a true palm (family Arecaceae) but a member of a monocotyledonous flowering plant family, Strelitziaceae.  The genus is closely related to the southern African genus "Strelitzia" and the South American genus "Phenakospermum".  Some older classifications include these genera in the banana family (Musaceae).  Although it is usually considered to be a single species, four different forms have been distinguished.

Photinia: Photinia ( ) is a genus of about 40–60 species of small trees and large shrubs, but the taxonomy has recently varied greatly, with the genera "Heteromeles", "Stranvaesia" and "Aronia" sometimes included in "Photinia".

Supporting paragraphs: Photinia Chamaerops
Answer: Chamaerops