Friesodielsia parvimitra (Annonaceae), a New Species from Peninsular Thailand and a Note on F. argentea
Abstract
:1. Introduction
2. Taxonomic Results
- Type: Thailand, Yala Province: Betong, 9 March 2023, Leeratiwong 23-2298 (holotype PSU; isotypes BKF, KKU, QBG).
- Type: Malaysia, Terengganu, Bukit Kajang, Kemaman, 14 November 1935, Corner SFN 30457 (holotype: SING [SING0048676]; isotypes: K-2 sheets [K000691775 & K000691776], KEP).
- Friesodielsia glauca (Hook.f. & Thomson) Steenis, Blumea 12: 359. 1964; Leerat. et al., Thai For. Bull. (Bot.), 49(2): 225. 2021.—Oxymitra glauca Hook.f. & Thomson, Fl. Ind. 146. 1855; J.Sinclair, Gard. Bull. Singapore 14: 460. 1955.—Richella glauca (Hook.f. & Thomson) R. E. Fr. in Melchior, ed., Nat. Pflanzenfam., ed. 2, 17a(2): 139. 1959. Figure 3 and Figure 5.
- Type: Malaysia, Prince of Wales Island [Penang], Anonymous [W.E. Phillips] s.n. (holotype K [K000691773]).
3. Discussion
Revised key to the triquetrous-petaled Friesodielsia species in Thailand | ||
1 | Pedicels equal or more than 59 mm long; twigs persistently hispid | F. filipes |
1′ | Pedicels less than 59 mm long; twigs tomentose, pubescent, or glabrous | 2 |
2 | Sepals 7–17 mm long | 3 |
2′ | Sepals 2.5–6.0 mm long | 5 |
3 | Inner petals about half length of outer petals; outer petals less than or equal to 17 mm long; pedicellar bracts apical | F. calycina |
3′ | Inner petals much longer than half of outer petals; outer petals more than 17 mm long; pedicellar bracts at midpoint or basal | 4 |
4 | Lower surface of leaves glaucous; bracts cordate to reniform; sepals with 5 distinct veins; carpels 7–15 | F. affinis |
4′ | Lower surface of leaves non-glaucous; bracts broadly ovate; sepals with 5–7 obscure veins; carpels ca 30 | F. chalermgliniana |
5 | Inner petals longer or equal to half length of outer petals | 6 |
5′ | Inner petals shorter than half length of outer petals | 8 |
6 | Inner petals less than 18 mm long; pedicels of flower/fruit more than or equal to 14 mm long | F. betongensis |
6′ | Inner petals equal or more than 18 mm long; pedicels of flower/fruit less than 14 mm long | 7 |
7 | Outer petals 12–17 mm wide; inner petals 9–13 mm wide, apex acuminate; sepals crescent-shaped; leaves 7.5–15 cm wide, apex obtuse to rounded, occasionally emarginate or mucronate | F. latifolia |
7′ | Outer petals 6–8 mm wide; inner petals 5.0–5.5 mm wide, apex acute; sepals transversely ovate; leaves 2.8–5.8 cm wide, apex more or less cuspidate, acute to acute-acuminate, rarely obtuse or rounded | F. lalisae |
8 | Pedicels ca 10 mm long; leaves without brown-red appressed pubescence | F. khaoluangensis |
8′ | Pedicels more than 10 mm long; leaves with brown-red appressed pubescence | 9 |
9 | Calyx 2–3 mm long; inner petals 4–5 mm long, puberulous outside; lower leaf surface non-glaucous | F. parvimitra |
9′ | Calyx 4–6 mm long; inner petals 7–15 mm long, glabrous outside; lower leaf surface glaucous | 10 |
10 | Pedicels 16–22 mm long, thickened; bracts 2.0–2.5 mm long; sepals 3.0–3.5 mm wide; monocarp stipe 15–18 mm long; sepals with margin reduplicate; leaves mostly oblanceolate to elliptic, acumen 10–20 mm long | F. argentea |
10′ | Pedicels 20–40 mm long, slender; bracts 0.9–1.7 mm long; sepals 1.5–2.5 mm wide; monocarp stipe 5–12 mm long; sepals with margin non-reduplicate; leaves mostly obovate to oblanceolate-obovate, acumen 6–20 mm long | F. glauca |
4. Materials and Methods
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Characters | F. argentea | F. glauca | F. lalisae | F. parvimitra |
---|---|---|---|---|
Glaucescence | Present | Present | Absent | Absent |
Inflorescence | 1-flowered | 1-flowered | 1-flowered | 1–3-flowered |
Pedicels | 16–22 mm long, thick | 20–40 mm long, slender | 9–10 mm long, slender | 12–16 mm long, slender |
Bracts | 2.0–2.5 mm long | 0.9–1.7 mm long | unknown | 0.5–0.8 mm long |
Sepals | triangular-ovate, 4.5–6.0 × 3.0–3.5 mm, margin reduplicated | triangular, 4.0–5.5 × 1.5–2.5 mm, margin not reduplicated | broadly ovate, 3.0–3.1 mm long, margin not reduplicated | ovate, 2–3 mm long, margin reduplicated |
Outer petals | 25–38 × 4.5–6 mm | 30–45 × 2.5–4 mm | (34–)46–47 × 6–8 mm | 20–25 × 2–4 mm |
Inner petals | 9–15 × 2.7–3.5 mm, outside glabrous | 7–10 × 2.0–2.5 mm, outside glabrous | 19–25 mm long, outside puberulous with appressed hairs only along midline | 4–5 × 2–3 mm, outside puberulous with appressed hairs |
Carpels | 28–32 | 15–18 | ca 22 | 20–30 |
Stipe length | 15–18 mm | 5–18 mm | unknown | 3–5 mm (immature) |
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Satthaphorn, J.; Johnson, D.M.; Leeratiwong, C. Friesodielsia parvimitra (Annonaceae), a New Species from Peninsular Thailand and a Note on F. argentea. Plants 2024, 13, 189. https://doi.org/10.3390/plants13020189
Satthaphorn J, Johnson DM, Leeratiwong C. Friesodielsia parvimitra (Annonaceae), a New Species from Peninsular Thailand and a Note on F. argentea. Plants. 2024; 13(2):189. https://doi.org/10.3390/plants13020189
Chicago/Turabian StyleSatthaphorn, Jiratthi, David M. Johnson, and Charan Leeratiwong. 2024. "Friesodielsia parvimitra (Annonaceae), a New Species from Peninsular Thailand and a Note on F. argentea" Plants 13, no. 2: 189. https://doi.org/10.3390/plants13020189