Harperocallis

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Taxonavigation

Ordo: Alismatales
Familia: Tofieldiaceae

Name

Harperocallis McDaniel, J. Arnold Arbor. 49 (1): 36. 1968. – Wikispecies link – Pensoft Profile

Type

Harperocallis flava McDaniel.

Key to the Species of Harperocallis

(modified from: Cruden 1991, and Campbell 2010)

Key to the Species of Harperocallis — L. Campbell , L. Dorr

1		Capsules ribbed or unribbed, well-developed lateral veins never extending to the style base    6
–		Capsules 9-ribbed, well-developed lateral veins extending to the style base    2
2		Inflorescence compound, the branches subtended by chlorophyllous cataphylls    Harperocallis paniculata
–		Inflorescence a simple raceme; peduncular bracts scarious    3
3		Flowers pendant    Harperocallis penduliflora
–		Flowers erect    4
4		Leaves 2.0–4.0 mm wide, usually glabrous, occasionally ciliate at the sheath apex; peduncles < 1.5 mm wide; calycular bracts longer than wide; tepals 6.0–9.0 × 1.5–2.0 mm; anthers 0.9–1.1 mm long    Harperocallis duidae
–		Leaves 3.0–7.0 mm wide, margin ciliolate to hirsutulous; peduncles > 1.5 mm wide; calycular bracts usually wider than long, sometimes equal; tepals 11–14 × 2–4 mm; anthers > 1.1 mm long    5
5		Leaves 3.0–6.5 mm wide; peduncular bracts 3–8 (–10); inflorescence ca. 9–30-flowered; tepals enclosing the rest of the flower; anthers 1.2–1.8 mm long    Harperocallis schomburgkiana
–		Leaves 6.0–7.0 mm wide; peduncular bracts 3 or 4; inflorescence ca. 25–40-flowered; tepals open; anthers 2.0–2.5 mm long    Harperocallis neblinae
6		Capsule incompletely 9-ribbed, well-developed lateral veins never extending to the style base    7
–		Capsule 3-ribbed or unribbed    8
7		Inflorescence with eglandular hairs; peduncular bracts (3–) 4–11 (–15); flowers (4–) 8–28; styles recurved, apices oblique; stigmas facing outward; capsule etuberculate    Harperocallis sessiliflora
–		Inflorescence glabrous; peduncular bracts 7–17; flowers 23–35; styles straight; stigmas capitate; capsule tuberculate    Harperocallis robustior
8		Leaves glabrous, veins not prominent; inflorescence 1-flowered; flower erect; ovary densely tuberculate; capsule unribbed    Harperocallis flava
–		Leaf margin tomentose, ciliolate or glabrous, veins prominent; inflorescence > 1-flowered, or if 1-flowered, the flower pendant; ovary not tuberculate; capsule 3-ribbed    9
9		Peduncular bract solitary, chlorophyllous; inflorescence 1–4-flowered; flowers pendant    Harperocallis sipapoensis
–		Peduncular bracts (1) 2–8, scarious; inflorescence > 10-flowered; flowers erect    10
10		Calycular bracts usually longer than wide (1.8–3.0 × 1.7–2.5 mm); styles 0.3–0.8 (–0.9) mm long, straight; stigmas capitate    Harperocallis falcata
–		Calycular bracts usually wider than long (1.5–2 × 1.8–2.3 mm); styles 0.9–1.1 mm long, recurved, apices oblique; stigmas facing outward    Harperocallis longiflora

Taxon Treatment

• Campbell, L; Dorr, L; 2013: A synopsis of Harperocallis (Tofieldiaceae, Alismatales) with ten new combinations PhytoKeys, 21: 37-52. doi

Images

Figure 1. Distribution of Harperocallis.  Figure 3. Harperocallis robustior. A Habit B Leaf (detail of parallel veins and tomentose margins) C Inflorescence (detail showing peduncular and calycular bracts subtending flowers) D Peduncular bracts (detail) E Flower F Tepal (adaxial view) G Ovary (note the tuberculae) H Ovary (cross-section showing axile placentation and ovules) I Capsule (carpels separating distally). (A, I from L.J. Dorr et al. 4967 (US); B–H from B. Stergios et al. 17327 (PORT).