690 Index 
Rhynchospora (cont.) 
cephalotes, 526 
ciliata, 532 
clarkei, 525 
colorata, 526 
comata, 527 
contracta, 527 
corymbosa, 527 
var. corymbosa, 527 
cymosa 
var. globularis, 529 
cyperoides, 530 
dissitiflora, 528 
dives, 528 
eximia, 528 
filiformis, 528 
gigantea 
var. latifolia, 521 
glauca, 535 
globosa, 529 
lobularis, 529 
hassleri, 529 
hieronymi, 530 (530) 
hirsuta, 530 
holoschoenoides, 530 
kunthii, 535 
locuples, 531 
longispicata, 528 
macrochaeta, 531 
marisculus, 531 
mexicana, 531 
micrantha, 527 
nervosa, 532 
subsp. ciliata, 532 
subsp. nervosa, 532 
oreoboloidea, 532 (532) 
paramora, 532 
pedersenii, 521 
polyphylla, 533 
polystachys, 533 
pubera, 533 
subsp. parvula, 534 
pungens, 534 
radicans, 534 
subsp. microcephala, 534 
subsp. radicans, 534 
robusta, 538 
rugosa, 534 
ruiziana, 535 
schaffneri, 535 
schiedeana, 535 
setacea, 536 
talamancensis, 536 
tenerrima, 536 
tenuis, 530 
torresiana, 536 
trichodes, 536 
triflora, 537 
trispicata, 537 
tuerckheimii, 537 
velutina, 538 
vulcani, 538 
watsonii, 538 
Richardia 
africana, 199 
Ronnbergia, 335 
hathewayi, 335 (335) 
Rooseveltia 
frankliniana, 262 
Sabadilla 
officinalis, 668 
Sabal, 288 
allenii, 288 
mauritiiformis, 288 (288) 
morrisiana, 288 
nematoclada, 288 
Sagittaria, 39 
guayanensis, 40 (40) 
subsp. guayanensis, 40 
lancifolia, 40 (41) 
subsp. lancifolia, 41 
subsp. media, 41 
var. media, 41 
latifolia, 41 
var. pubescens, 41 
rhombifolia, 41 
Sagus 
taedigera, 284 
Salmia 
laucheana, 451 
Salvinia 
laevigata, 597 
Sansevieria, 568 
guineensis, 568 
hyacinthoides, 568 
laurentii, 568 
trifasciata, 568 
var. laurentii, 568 
Sarcinanthus 
utilis, 436 
Scheelea 
costaricensis, 212 
gomphococcoa, 212 
liebmannii, 212 
lundellii, 212 
preussii, 212 
rostrata, 212 
zonensis, 212 
Schoenocaulon, 668 
officinale, 668 (668) 
Schoenoplectus, 539 
americanus, 539 (540) 
californicus, 539 
validus, 540 
Schoenus, 458 
barbatus, 525 
coloratus, 526 
comatus, 527 
hirsutus, 530 
holoschoenoides, 530 
juncoides, 464 
paradoxus, 464 
polyphyllus, 533 
rugosus, 534 
secans, 547 
Scirpidium 
nigrescens, 503 
Scirpus 
acicularis, 500 
acutangulus, 500 
americanus, 539 
atropurpureus, 500 
autumnalis, 506 
barbatus, 463 
californicus, 539 
cephalotes, 526 
chilensis, 539 
complanatus, 506 
confervoides, 550 
corymbosus, 527 
cubensis, 519 
dichotomus, 507 
elegans, 500 
flavescens, 501 
geniculatus, 501 
interstinctus, 502 
inundatus, 512 
lithospermus, 545 
longifolius, 510 
luzulae, 488 
micranthus, 516 
mitratus, 505 
montanus, 503 
mutatus, 503 
nigricans, 512 
pachystylus, 504 
plicarhachis, 504 
retroflexus, 504 
setaceus, 512 
spadiceus, 508 
tenuifolius, 465 
validus, 540 
Scleria, 540 
anceps, 542 
arundinacea, 544 
bracteata, 542 (542) 
ciliata, 542 
coriacea, 542 
costaricensis, 548 
