Cladocolea (Kuijt, 1991)

Martínez-Ambriz, Emmanuel & Cruz-Durán, Ramiro, 2015, Cladocolea kuijtii (Loranthaceae) a new species from Mexico, Phytotaxa 195 (1), pp. 73-78 : 76-77

Key to identify the species of Cladocolea from Guerrero, Mexico

1. Plants glabrous, dioecious ................................................................................................................................................................. 2

- Plants pubescent, puberulous or papillose, hermaphrodites or dioecious ......................................................................................... 9

2. Epicortical roots present, inflorescences in spike, flowers usually hexamerous, rarely pentamerous.............................................. 3

- Epicortical roots absent, inflorescences in dichasium, capitulum or raceme, flowers hexamerous or tetramerous..........................6

3. Phyllotaxis alternate, leaves ensiform, male inflorescence shorter than the female .......................................................... C. gracilis

- Phyllotaxis alternate to opposite, leaves lanceolate to oblanceolate, sometimes orbicular or spatulate, male and female inflorescences of the same size ................................................................................................................................................................................. 4

4. Petiole winged, pinnate venation, flowers inserted almost perpendiculary to the inflorescence axis........................... C. mcvaughii

- Petiole subsessile, pinnate venation with multiple nerves at the base, flowers inserted opposite to alternate to the inflorescence axis..................................................................................................................................................................................................... 5

5. Spikes always determinate, floccose trichomes present in the adaxial surface of the petals, fruit 10 mm long or more .................... ......................................................................................................................................................................................... C. grahamii

- Spikes generally indeterminate, sometimes determinate, floccose trichomes absent in the adaxial surface of the petals, fruit 5 mm long or less......................................................................................................................................................................... C. pringlei

6. Inflorescences dimorphic, the primary in the young growth with shape of dichasium, the secondary in the last year growth with shape of spike, tetramerous flowers ................................................................................................................................ C. oligantha

- Inflorescences isomorphic, hexamerous flowers............................................................................................................................... 7

7. Stems quadrangular and sulcate, inflorescences capituliform, flowers sessile .............................................................. C. andrieuxii

- Stems cylindrical, inflorescences racemeform, pedicellate flowers.................................................................................................. 8

8. Phyllotaxis alternate rarely opposite, determinate inflorescence with 7–9 flowers, pedicel 4–7 mm long ................. C. pedicellata

- Phyllotaxis opposite rarely alternate, indeterminate inflorescen with 10–14 flowers, pedicel 0.5–2 mm long............. C. racemosa

9. Phyllotaxis alternate, leaves narrowly lanceolate to ensiform, papillose to puberolous indumentum, tetramerous flowers.......... 10

- Phyllotaxis alternate to opposite, leaves lanceolate, ovate, obovate or orbicular, pubescent indumentum .................................... 11

10. Plants hermaphrodite, dimorphic inflorescences, the primary in the young growth with shape of dichasium, the secondary in the last year growth with shape of capitulum, foliar bracts present only in the lateral flowers........................................... C. dimorpha

- Plants dioecius, isomorphic inflorescences with shape of capitulum, male inflorescences shorter than the female, foliar bracts absent................................................................................................................................................................................. C. coyucae

11. Inflorescences spiciform with 3–7 flowers, bracts deciduous............................................................................................ C. hintonii

- Inflorescences capituliform with 4–10 flowers, bracts persistent ................................................................................................... 12

12. Foliar bracts present ........................................................................................................................................................................ 13

- Foliar bracts absent.......................................................................................................................................................................... 14

13. Not sympodial branch, yellow-brown colored stem, inflorescence with 10–25 mm long, hexamerous flowers, rarely pentamerous C. loniceroides

- Sympodial branch, grey colored stem, inflorescence with 8–13 mm long, hexamerous flowers ............................... C. microphylla

14. Inflorescences 5–8 mm long, triangular bracts 1–2 mm long, pentamerous flowers, sometimes hexamerous, rarely tetramerous .... ............................................................................................................................................................................................... C. stricta

- Inflorescences 6–25 mm long, triangular to oblanceolate bracts 1–4 mm long, pentamerous flowers, rarely hexamerous................ ............................................................................................................................................................................................... C. kuijtii