Revisional study of neotropical Beilschmiedia species (Lauraceae ...

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The closest affinity of B. hondurensis is B. brenesii. Some, if not all, Mexican collections I placed in B. hondurensis approach to B. brenesii and make the distinction between B. hondurensis and B. brenesii difficult. Usually, B. hondurensis is distinguished from B. brenesii by its petioles darker than twigs, shorter flower pedicels and fruit pedicels constricted at the base. But the Mexican collections have the petioles concolorous with twigs and fruit pedicels not constricted at the base. Typical collections of B. hondurensis have acuminate leaf apices, but the Mexican collections sometimes have acute leaf apices, which are similar to the most collections of B. brenesii. Considering distribution of typical B. hondurensis (Guatemala, Belize and Honduras) and B. brenesii (Costa Rica and Panama), it is unreasonable to combine the Mexican collections and B. brenesii into one species with disjunct distribution and to regard B. hondurensis as another species which distribution sandwiched between B. brenesii. And there are a few collections from Mexico which show an intennediate form between the B . brenesii-like Mexican collections and B. hondurensis. I consider combining B. brenesii and B. hondurensis (in this case, B. hondurensis has priority) if I had enough flowering material of B. hondurensis and if the flowers were similar to B. brenesii. However, I have seen only one collection with good flowers in Beilschmiedia hondurensis, which is from 200 m altitude in Mexico, unusually low habitat for both of B. hondurensis and B. brenesii. And that collection has short flower pedicels (0.5 mm long in the lateral divisions, up to 1.5 mm long in the central flowers), quite different from the long pedicels of B. brenesii (3-5 mm in the lateral divisions, up to 7 mm long in the central flowers). There are a few more collections in B. hondurensis which appear to have short flower pedicels, but they are too young or too old to compare the length correctly. Therefore, I decided to keep B. hondurensis and B. brenesii separate, and to place all the Mexican collections in B. hondurensis, because I thought it is more confusing to combine the two species without stronger evidence. The type collection of B. zapoteoides has opposite leaves and coarse ramification like B. hondurensis, but has relatively long flower pedicels (ca. 2 mm long in the lateral divisions) and bigger, n1ore or less spherical fruit compared to B. hondurensis. And there are two collections from El Salvador, one of which in flower has also long flower pedicels (2.5 mm long in the lateral divisions), and another collection.has young fruits, uncertain whether the fruits grow big and spherical or not. I decide to place B. zapoteoides in an imperfectly known species, with annotating the two Salvadorian collections "B. zapoteoides vel aff. ", 50
ecause the flowers of the type collection and the Salvadorian collection appear to be abnormal (leaves are diseased, and the number of cells in the third whorled anthers are variable, from two to zero) and one cannot delimitate the species based on such poor material only. 13. Beilschmiedia immersinervis Sa. Nishida sp. nov. TYPE: Costa Rica. Puntarenas: Canton de Puntarenas, Cordillera de Tilanin, Santa Elena, near Cafiitas, Zona Monteverde, 10°19'30''N 84°49'30"W, 1400 malt., Dec. 1, 1992 (fl.), Guindon & Brenes 56 (holotype, MO; isotypes, CR, INB, MO, USJ). Beilschmiedia pendula similis, sed pilis erectis et antheris pubescentibus differt. Tree, to 30m tall. Terminal buds pubescent with erect, short curly hairs. Twigs tcrete, compressed or sulcate when young, densely to sparsely pubescent with erect curly hairs, less densely to almost glabrous when older. Leaves alternate to sub-opposite, rather clustered near the terminal buds; petioles 0.7-1 (1.5) em long, flat above, pubescent with erect curly hairs, concolorous with twigs; blades firmly chartaceous, oblanceolate to elliptic, 6-10 (13) x (2) 2.5-4 (6) em; base attenuate to cuneate, not inrolled, apex acute, rarely obtuse; leaf surface glabrous on both sides, lower leaf surface glaucous; midrib immersed above, slightly raised below, secondary veins 7-10 pairs, immersed on both sides (visible on lower leaf surface), tertiary veins weakly percurrent, ramification fine, areolate without free veinlets, immersed and hardly visible above, almost immersed or very slightly raised below. Inflorescences in axils of the leaves near the terminal buds, paniculate with few branches, 2-6 em long, pubescent with erect short hairs, with 10-30 (50) flowers per inflorescence; flower pedicels of the lateral divisions ca. 1 mm long, pedicels of the central flowers up to 3 mm long. Flowers greenish-yellow, ca. 2.8 mm long, ca. 2.6 mm in diam.; tepals 6, equal, elliptic to ovate, ca. 2.2 mm long, 1.3-1. 7 mm wide, pubescent with erect or appressed hairs on both sides; stamens 9, outer six filaments ca. 0.6 mm long, innermost three filaments ca. 0.8 mm long, filaments pubescent, anthers ca. 0.8-1 mm long, all the anthers 2-celled, apex of the anthers obtuse to truncate, apex of the anthers pubescent, glands of the innermost three stamens globose; staminodia 3, cordate in outline, ca. 0.7 mm long; pistil ca. 1.3 mm long, glabrous, ovary almost as long as and gradually narrowed into the style; receptacle pubescent with appressed to erect hairs. Fruits ellipsoid, shiny black, 51
Page 1 and 2:
KURENAI : Kyoto University Researc
Page 3 and 4: Contents Abstract Chapter 1 Chapter
Page 5 and 6: Chapter 1 General Introduction Laur
Page 7 and 8: Chapter 2 Revisional study of neotr
Page 9 and 10: Akkermans", if it is not a type, Be
Page 11 and 12: Straightness of the indument son1et
Page 13 and 14: Staminodia in the fourth whorl are
Page 15 and 16: elongs not to B. ova/is but to B. a
Page 17 and 18: Many species occur fron1 premontane
Page 19 and 20: Although I did not make an intensiv
Page 21 and 22: 12a. Inflorescences racen1ose, more
Page 23 and 24: 1. Beilscluniedia alloiophylla (Rus
Page 25 and 26: slopeS of creek, NE slope of Altos
Page 27 and 28: Rica. This group appears to have re
Page 29 and 30: anay, and he stated that the Colotn
Page 31 and 32: Phenology: collected in flower in M
Page 33 and 34: angustifolia has pubescent pistils,
Page 35 and 36: The specimen with a label saying "B
Page 37 and 38: 23, 1990 (fr.), Estinoza45 (CR, INB
Page 39 and 40: Beilschmiedia rohliana Lasser, Bol.
Page 41 and 42: (fl.), Haber 11837 (MO); La Peii.a
Page 43 and 44: (F); Con. Ceylan, path La Esmeralda
Page 45 and 46: Colombia (Cuatrecasas 22220, 22438)
Page 47 and 48: locality, Nov. 29- Dec. 18, 1964 (s
Page 49 and 50: Among Brazilian Beifschmiedia speci
Page 51 and 52: van der Werff et al. 12951 (holotyp
Page 53: inside; starnens 9, filaments ca. 0
Page 57 and 58: This species also shares a similar
Page 59 and 60: synonym of B . sulcata, supposedly
Page 61 and 62: Additional specimen examined: Brazi
Page 63 and 64: Cristobal leaving main Hwy 100.8 mi
Page 65 and 66: pubescent with erect, curly to wavy
Page 67 and 68: Tree, to 20 m tall. Terminal buds p
Page 69 and 70: 16 x (5) 6-10 em; base obtuse to cu
Page 71 and 72: Alajuela: Canton de Alfaro Ruiz, Pa
Page 73 and 74: There are several collections from
Page 75 and 76: Spiritus (Las Villas): same mountai
Page 77 and 78: (fl.), Ekman Hl4565 (MO), Apr. 3, 1
Page 79 and 80: 316, 1906, Little Jr. 6293, Aguilar
Page 81 and 82: Cerro Hueco, ca. 700 malt., Feb. 4,
Page 83 and 84: ecause there is a distribution gap
Page 85 and 86: Beilschmiedia immersinervis also ap
Page 87 and 88: hairs. Fruits ellipsoid, ca. 5 x 3
Page 89 and 90: Additional specimens examined: Cost
Page 91 and 92: 2, 1994 (young fl.), van der Werff
Page 93 and 94: In the illustration of Ruiz and Pav
Page 95 and 96: Table 1. List of the Beilschmiedia
Page 97 and 98: Legends of figures Fig. 1. Five typ
Page 99: 4 A B c . w ; . -)1 . ..... J.f D f
Page 102 and 103: o Beilschmiedia berteroana * B. bre
Page 104 and 105:
o Beilschmiedia hexanrhera * B. hon
Page 106 and 107:
0 o Beilschmiedia ovaLioides *B. ov
Page 108 and 109:
C::::J.o•' :: ~ ·a ' \) ' ,o 0 .
Page 110 and 111:
Chapter 3. Leaf Anatomy of neotropi
Page 112 and 113:
3. Leaf sections The technique used
Page 114 and 115:
16), B. ovalis (Fig. 18), B. peruiu
Page 116 and 117:
smooth. However, in B. angustielfip
Page 118 and 119:
uneven-sized subsidiary cells. This
Page 120 and 121:
Midrib. The most distinct character
Page 122 and 123:
This grouping is more or less suppo
Page 124 and 125:
In leaf sectional study, neotropica
Page 126 and 127:
Species of group 2 have leaves oppo
Page 128 and 129:
Table 1. List of samples for venati
Page 130 and 131:
0\ Table 2. Continued. B. emarginat
Page 132 and 133:
Legends of figures Fig. 1-25. Venat
Page 134 and 135:
Fig. 122-143. Midrib sections of ne
Page 136 and 137:
2 132
Page 138 and 139:
10 1 1 12 \ 14 134
Page 140 and 141:
136
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138
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140
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142
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144
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146
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148
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150
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Page 160 and 161:
References Allen, C. K. 1945. Studi
Page 162:
Meissner, C. F. 1864. Lauraceae. Pp
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